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Volumn 26, Issue , 2017, Pages 53-60

Effect of vitamin D supplementation on polycystic ovary syndrome: A systematic review and meta-analysis of randomized controlled trials

Author keywords

Meta analysis; PCOS; RCTs; Vitamin D

Indexed keywords

VITAMIN D;

EID: 84999176891     PISSN: 17443881     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ctcp.2016.11.008     Document Type: Review
Times cited : (72)

References (45)
  • 1
    • 74549160893 scopus 로고    scopus 로고
    • The prevalence of polycystic ovary syndrome in a community sample assessed under contrasting diagnostic criteria
    • [1] March, W.A., Moore, V.M., Willson, K.J., Phillips, D.I., Norman, R.J., Davies, M.J., The prevalence of polycystic ovary syndrome in a community sample assessed under contrasting diagnostic criteria. Hum. Reprod. 25 (2010), 544–551.
    • (2010) Hum. Reprod. , vol.25 , pp. 544-551
    • March, W.A.1    Moore, V.M.2    Willson, K.J.3    Phillips, D.I.4    Norman, R.J.5    Davies, M.J.6
  • 3
    • 84999257583 scopus 로고    scopus 로고
    • Prevalence of vitamin D deficiency in women with infertility due to polycystic ovary syndrome
    • [3] Ahmad, S., Prevalence of vitamin D deficiency in women with infertility due to polycystic ovary syndrome. BJOG-Int J. Obstet. Gy 120 (2013), 208–209.
    • (2013) BJOG-Int J. Obstet. Gy , vol.120 , pp. 208-209
    • Ahmad, S.1
  • 4
    • 80052969896 scopus 로고    scopus 로고
    • Vitamin D deficiency is common and associated with metabolic risk factors in patients with polycystic ovary syndrome
    • [4] Li, H.W.R., Brereton, R.E., Anderson, R.A., Wallace, A.M., Ho, C.K.M., Vitamin D deficiency is common and associated with metabolic risk factors in patients with polycystic ovary syndrome. Metabolism 60 (2011), 1475–1481.
    • (2011) Metabolism , vol.60 , pp. 1475-1481
    • Li, H.W.R.1    Brereton, R.E.2    Anderson, R.A.3    Wallace, A.M.4    Ho, C.K.M.5
  • 5
    • 84884206278 scopus 로고    scopus 로고
    • Association of vitamin D3 deficiency with clinical and biochemical parameters in Indian women with polycystic ovary syndrome
    • [5] Bhattacharya, S.M., Jha, A., Association of vitamin D3 deficiency with clinical and biochemical parameters in Indian women with polycystic ovary syndrome. Int. J. Gynaecol. Obstet. 123 (2013), 74–75.
    • (2013) Int. J. Gynaecol. Obstet. , vol.123 , pp. 74-75
    • Bhattacharya, S.M.1    Jha, A.2
  • 7
    • 84865005696 scopus 로고    scopus 로고
    • Vitamin D in the aetiology and management of polycystic ovary syndrome
    • [7] Thomson, R.L., Spedding, S., Buckley, J.D., Vitamin D in the aetiology and management of polycystic ovary syndrome. Clin. Endocrinol. (Oxf) 77 (2012), 343–350.
    • (2012) Clin. Endocrinol. (Oxf) , vol.77 , pp. 343-350
    • Thomson, R.L.1    Spedding, S.2    Buckley, J.D.3
  • 8
    • 38449104619 scopus 로고    scopus 로고
    • Relative expression of 1,25-dihydroxyvitamin D3 receptor, vitamin D 1 alpha-hydroxylase, vitamin D 24-hydroxylase, and vitamin D 25-hydroxylase in endometriosis and gynecologic cancers
    • [8] Agic, A., Xu, H., Altgassen, C., Noack, F., Wolfler, M.M., Diedrich, K., Friedrich, M., Taylor, R.N., Hornung, D., Relative expression of 1,25-dihydroxyvitamin D3 receptor, vitamin D 1 alpha-hydroxylase, vitamin D 24-hydroxylase, and vitamin D 25-hydroxylase in endometriosis and gynecologic cancers. Reprod. Sci. 14 (2007), 486–497.
    • (2007) Reprod. Sci. , vol.14 , pp. 486-497
    • Agic, A.1    Xu, H.2    Altgassen, C.3    Noack, F.4    Wolfler, M.M.5    Diedrich, K.6    Friedrich, M.7    Taylor, R.N.8    Hornung, D.9
  • 10
    • 69249212350 scopus 로고    scopus 로고
    • Role of vitamin D treatment in glucose metabolism in polycystic ovary syndrome
    • [10] Kotsa, K., Yavropoulou, M.P., Anastasiou, O., Yovos, J.G., Role of vitamin D treatment in glucose metabolism in polycystic ovary syndrome. Fertil. Steril. 92 (2009), 1053–1058.
    • (2009) Fertil. Steril. , vol.92 , pp. 1053-1058
    • Kotsa, K.1    Yavropoulou, M.P.2    Anastasiou, O.3    Yovos, J.G.4
  • 11
    • 77953562058 scopus 로고    scopus 로고
    • The effect of vitamin D replacement therapy on insulin resistance and androgen levels in women with polycystic ovary syndrome
    • [11] Selimoglu, H., Duran, C., Kiyici, S., Ersoy, C., Guclu, M., Ozkaya, G., Tuncel, E., Erturk, E., Imamoglu, S., The effect of vitamin D replacement therapy on insulin resistance and androgen levels in women with polycystic ovary syndrome. J. Endocrinol. Invest. 33 (2010), 234–238.
    • (2010) J. Endocrinol. Invest. , vol.33 , pp. 234-238
    • Selimoglu, H.1    Duran, C.2    Kiyici, S.3    Ersoy, C.4    Guclu, M.5    Ozkaya, G.6    Tuncel, E.7    Erturk, E.8    Imamoglu, S.9
  • 12
    • 84856855846 scopus 로고    scopus 로고
    • Effect of vitamin D3 treatment on glucose metabolism and menstrual frequency in polycystic ovary syndrome women: a pilot study
    • [12] Wehr, E., Pieber, T.R., Obermayer, P.B., Effect of vitamin D3 treatment on glucose metabolism and menstrual frequency in polycystic ovary syndrome women: a pilot study. J. Endocrinol. Invest. 34 (2011), 757–763.
    • (2011) J. Endocrinol. Invest. , vol.34 , pp. 757-763
    • Wehr, E.1    Pieber, T.R.2    Obermayer, P.B.3
  • 13
    • 0001217801 scopus 로고
    • Diagnostic Criteria for Polycystic Ovary Syndrome: towards a Rational Approach
    • A. Dunaif J.R. Givens F.P. Haseltine G.R. Merriam Blackwell Scientific Publications Boston
    • [13] Zawadzki, J.K., Dunaif, A., Diagnostic Criteria for Polycystic Ovary Syndrome: towards a Rational Approach. Dunaif, A., Givens, J.R., Haseltine, F.P., Merriam, G.R., (eds.) Polycystic Ovary Syndrome, 1992, Blackwell Scientific Publications, Boston, 377–384.
    • (1992) Polycystic Ovary Syndrome , pp. 377-384
    • Zawadzki, J.K.1    Dunaif, A.2
  • 14
    • 0346186090 scopus 로고    scopus 로고
    • Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome (PCOS)
    • [14] Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome (PCOS). Hum. Reprod. 19 (2004), 41–47.
    • (2004) Hum. Reprod. , vol.19 , pp. 41-47
  • 15
    • 84887346660 scopus 로고    scopus 로고
    • Cochrane handbook for Systematic Reviews of Interventions Version 5.1.0
    • The Cochrane Collaboration
    • [15] Higgins, J.P.T., Green, S., Cochrane handbook for Systematic Reviews of Interventions Version 5.1.0. 2011 The Cochrane Collaboration.
    • (2011)
    • Higgins, J.P.T.1    Green, S.2
  • 16
    • 84899454817 scopus 로고    scopus 로고
    • Vitamin D improves endometrial thickness in PCOS women who need intrauterine insemination: a randomized double-blind placebo-controlled trial
    • [16] Asadi, M., Matin, N., Frootan, M., Mohamadpour, J., Qorbani, M., Tanha, F.D., Vitamin D improves endometrial thickness in PCOS women who need intrauterine insemination: a randomized double-blind placebo-controlled trial. Arch. Gynecol. Obstet. 289 (2014), 865–870.
    • (2014) Arch. Gynecol. Obstet. , vol.289 , pp. 865-870
    • Asadi, M.1    Matin, N.2    Frootan, M.3    Mohamadpour, J.4    Qorbani, M.5    Tanha, F.D.6
  • 17
    • 84937686448 scopus 로고    scopus 로고
    • Calcium plus vitamin D supplementation influences biomarkers of inflammation and oxidative stress in overweight and vitamin D-deficient women with polycystic ovary syndrome: a randomized double-blind placebo-controlled clinical trial
    • [17] Foroozanfard, F., Jamilian, M., Bahmani, F., Talaee, R., Talaee, N., Hashemi, T., Nasri, K., Asemi, Z., Esmaillzadeh, A., Calcium plus vitamin D supplementation influences biomarkers of inflammation and oxidative stress in overweight and vitamin D-deficient women with polycystic ovary syndrome: a randomized double-blind placebo-controlled clinical trial. Clin. Endocrinol. (Oxf) 83 (2015), 888–894.
    • (2015) Clin. Endocrinol. (Oxf) , vol.83 , pp. 888-894
    • Foroozanfard, F.1    Jamilian, M.2    Bahmani, F.3    Talaee, R.4    Talaee, N.5    Hashemi, T.6    Nasri, K.7    Asemi, Z.8    Esmaillzadeh, A.9
  • 18
    • 84867054907 scopus 로고    scopus 로고
    • The effects of calcitriol on improvement of insulin resistance, ovulation and comparison with metformin therapy in PCOS patients: a randomized placebo-controlled clinical trial
    • [18] Bonakdaran, S., Khorasani, Z.M., Davachi, B., Khorasani, J.M., The effects of calcitriol on improvement of insulin resistance, ovulation and comparison with metformin therapy in PCOS patients: a randomized placebo-controlled clinical trial. Iran. J. Reprod. Med. 10 (2012), 465–472.
    • (2012) Iran. J. Reprod. Med. , vol.10 , pp. 465-472
    • Bonakdaran, S.1    Khorasani, Z.M.2    Davachi, B.3    Khorasani, J.M.4
  • 19
    • 84873572865 scopus 로고    scopus 로고
    • Effects of vitamin D on cardiovascular disease risk factors in polycystic ovary syndrome women with vitamin D deficiency
    • [19] Ardabili, H.R., Gargari, B.P., Farzadi, L., Effects of vitamin D on cardiovascular disease risk factors in polycystic ovary syndrome women with vitamin D deficiency. J. Endocrinol. Invest. 36 (2013), 28–32.
    • (2013) J. Endocrinol. Invest. , vol.36 , pp. 28-32
    • Ardabili, H.R.1    Gargari, B.P.2    Farzadi, L.3
  • 20
    • 84901799250 scopus 로고    scopus 로고
    • High-dose vitamin D supplementation and measures of insulin sensitivity in polycystic ovary syndrome: a randomized, controlled pilot trial
    • [20] Raja-Khan, N., Shah, J., Stetter, C.M., Lott, M.E.J., Kunselman, A.R., Dodson, W.C., Legro, R.S., High-dose vitamin D supplementation and measures of insulin sensitivity in polycystic ovary syndrome: a randomized, controlled pilot trial. Fertil. Steril. 101 (2014), 1740–1746.
    • (2014) Fertil. Steril. , vol.101 , pp. 1740-1746
    • Raja-Khan, N.1    Shah, J.2    Stetter, C.M.3    Lott, M.E.J.4    Kunselman, A.R.5    Dodson, W.C.6    Legro, R.S.7
  • 21
    • 84930937990 scopus 로고    scopus 로고
    • The effect of calcium and vitamin D supplementation on menstrual cycle, body mass index and hyperandrogenism state of women with poly cystic ovarian syndrome
    • [21] Tehrani, H.G., Mostajeran, F., Shahsavari, S., The effect of calcium and vitamin D supplementation on menstrual cycle, body mass index and hyperandrogenism state of women with poly cystic ovarian syndrome. J. Res. Med. Sci. 19 (2014), 875–880.
    • (2014) J. Res. Med. Sci. , vol.19 , pp. 875-880
    • Tehrani, H.G.1    Mostajeran, F.2    Shahsavari, S.3
  • 22
    • 84930760422 scopus 로고    scopus 로고
    • Calcium plus vitamin D supplementation affects glucose metabolism and lipid concentrations in overweight and obese vitamin D deficient women with polycystic ovary syndrome
    • [22] Asemi, Z., Foroozanfard, F., Hashemi, T., Bahmani, F., Jamilian, M., Esmaillzadeh, A., Calcium plus vitamin D supplementation affects glucose metabolism and lipid concentrations in overweight and obese vitamin D deficient women with polycystic ovary syndrome. Clin. Nutr. 34 (2015), 586–592.
    • (2015) Clin. Nutr. , vol.34 , pp. 586-592
    • Asemi, Z.1    Foroozanfard, F.2    Hashemi, T.3    Bahmani, F.4    Jamilian, M.5    Esmaillzadeh, A.6
  • 23
    • 84942510599 scopus 로고    scopus 로고
    • Effect of vitamin D supplementation on insulin kinetics and cardiovascular risk factors in polycystic ovarian syndrome: a pilot study
    • [23] Garg, G., Kachhawa, G., Ramot, R., Khadgawat, R., Tandon, N., Sreenivas, V., Kriplani, A., Gupta, N., Effect of vitamin D supplementation on insulin kinetics and cardiovascular risk factors in polycystic ovarian syndrome: a pilot study. Endocr. Connect. 4 (2015), 108–116.
    • (2015) Endocr. Connect. , vol.4 , pp. 108-116
    • Garg, G.1    Kachhawa, G.2    Ramot, R.3    Khadgawat, R.4    Tandon, N.5    Sreenivas, V.6    Kriplani, A.7    Gupta, N.8
  • 24
    • 67651153110 scopus 로고    scopus 로고
    • The effects of calcium-vitamin D and metformin on polycystic ovary syndrome: a pilot study
    • [24] Rashidi, B., Haghollahi, F., Shariat, M., Zayerii, F., The effects of calcium-vitamin D and metformin on polycystic ovary syndrome: a pilot study. Taiwan J. Obstet. Gynecol. 48 (2009), 142–147.
    • (2009) Taiwan J. Obstet. Gynecol. , vol.48 , pp. 142-147
    • Rashidi, B.1    Haghollahi, F.2    Shariat, M.3    Zayerii, F.4
  • 26
    • 84859138710 scopus 로고    scopus 로고
    • Vitamin D supplementation has no effect on insulin resistance assessment in women with polycystic ovary syndrome and vitamin D deficiency
    • [26] Ardabili, H.R., Gargari, B.P., Farzadi, L., Vitamin D supplementation has no effect on insulin resistance assessment in women with polycystic ovary syndrome and vitamin D deficiency. Nutr. Res. 32 (2012), 195–201.
    • (2012) Nutr. Res. , vol.32 , pp. 195-201
    • Ardabili, H.R.1    Gargari, B.P.2    Farzadi, L.3
  • 27
    • 52649162841 scopus 로고    scopus 로고
    • Vitamin D deficiency: a global perspective
    • [27] Prentice, A., Vitamin D deficiency: a global perspective. Nutr. Rev. 66 (2008), S153–S164.
    • (2008) Nutr. Rev. , vol.66 , pp. S153-S164
    • Prentice, A.1
  • 28
    • 77954362186 scopus 로고    scopus 로고
    • Worldwide status of vitamin D nutrition
    • [28] Lips, P., Worldwide status of vitamin D nutrition. J. Steroid Biochem. 121 (2010), 297–300.
    • (2010) J. Steroid Biochem. , vol.121 , pp. 297-300
    • Lips, P.1
  • 29
    • 84907261001 scopus 로고    scopus 로고
    • 1,25-Dihydroxyvitamin D3 increases testosterone-induced 17beta-estradiol secretion and reverses testosterone-reduced connexin 43 in rat granulosa cells
    • [29] Lee, C.T., Wang, J.Y., Chou, K.Y., Hsu, M.I., 1,25-Dihydroxyvitamin D3 increases testosterone-induced 17beta-estradiol secretion and reverses testosterone-reduced connexin 43 in rat granulosa cells. Reprod. Biol. Endocrinol., 12, 2014, 90.
    • (2014) Reprod. Biol. Endocrinol. , vol.12 , pp. 90
    • Lee, C.T.1    Wang, J.Y.2    Chou, K.Y.3    Hsu, M.I.4
  • 30
    • 84892772165 scopus 로고    scopus 로고
    • Genetic variation in the vitamin D receptor gene and vitamin D serum levels in Egyptian women with polycystic ovary syndrome
    • [30] El-Shal, A.S., Shalaby, S.M., Aly, N.M., Rashad, N.M., Abdelaziz, A.M., Genetic variation in the vitamin D receptor gene and vitamin D serum levels in Egyptian women with polycystic ovary syndrome. Mol. Biol. Rep. 40 (2013), 6063–6073.
    • (2013) Mol. Biol. Rep. , vol.40 , pp. 6063-6073
    • El-Shal, A.S.1    Shalaby, S.M.2    Aly, N.M.3    Rashad, N.M.4    Abdelaziz, A.M.5
  • 31
    • 84904420662 scopus 로고    scopus 로고
    • 25-Hydroxyvitamin D levels are related to hyperinsulinemia in polycystic ovary syndrome
    • [31] Guducu, N., Gormus, U., Kutay, S.S., Kavak, Z.N., Dunder, I., 25-Hydroxyvitamin D levels are related to hyperinsulinemia in polycystic ovary syndrome. Gynecol. Endocrinol. 30 (2014), 557–560.
    • (2014) Gynecol. Endocrinol. , vol.30 , pp. 557-560
    • Guducu, N.1    Gormus, U.2    Kutay, S.S.3    Kavak, Z.N.4    Dunder, I.5
  • 34
    • 84866379459 scopus 로고    scopus 로고
    • Therapeutic implications of vitamin D and calcium in overweight women with polycystic ovary syndrome
    • [34] Pal, L., Berry, A., Coraluzzi, L., Kustan, E., Danton, C., Shaw, J., Taylor, H., Therapeutic implications of vitamin D and calcium in overweight women with polycystic ovary syndrome. Gynecol. Endocrinol. 28 (2012), 965–968.
    • (2012) Gynecol. Endocrinol. , vol.28 , pp. 965-968
    • Pal, L.1    Berry, A.2    Coraluzzi, L.3    Kustan, E.4    Danton, C.5    Shaw, J.6    Taylor, H.7
  • 35
    • 84930942211 scopus 로고    scopus 로고
    • Serum vitamin D levels and polycystic ovary syndrome: a systematic review and meta-analysis
    • [35] He, C., Lin, Z., Robb, S.W., Ezeamama, A.E., Serum vitamin D levels and polycystic ovary syndrome: a systematic review and meta-analysis. Nutrients 7 (2015), 4555–4577.
    • (2015) Nutrients , vol.7 , pp. 4555-4577
    • He, C.1    Lin, Z.2    Robb, S.W.3    Ezeamama, A.E.4
  • 36
    • 78651272560 scopus 로고    scopus 로고
    • Serum 25-hydroxyvitamin D and parathyroid hormone are independent determinants of whole-body insulin sensitivity in women and may contribute to lower insulin sensitivity in African Americans
    • [36] Alvarez, J.A., Ashraf, A.P., Hunter, G.R., Gower, B.A., Serum 25-hydroxyvitamin D and parathyroid hormone are independent determinants of whole-body insulin sensitivity in women and may contribute to lower insulin sensitivity in African Americans. Am. J. Clin. Nutr. 92 (2010), 1344–1349.
    • (2010) Am. J. Clin. Nutr. , vol.92 , pp. 1344-1349
    • Alvarez, J.A.1    Ashraf, A.P.2    Hunter, G.R.3    Gower, B.A.4
  • 37
    • 84925174564 scopus 로고    scopus 로고
    • Is vitamin D a player or not in the pathophysiology of autoimmune thyroid diseases?
    • [37] D'Aurizio, F., Villalta, D., Metus, P., Doretto, P., Tozzoli, R., Is vitamin D a player or not in the pathophysiology of autoimmune thyroid diseases?. Autoimmun. Rev. 14 (2015), 363–369.
    • (2015) Autoimmun. Rev. , vol.14 , pp. 363-369
    • D'Aurizio, F.1    Villalta, D.2    Metus, P.3    Doretto, P.4    Tozzoli, R.5
  • 38
    • 84889255094 scopus 로고    scopus 로고
    • Elevated serum levels of anti-Mullerian hormone can be introduced as a new diagnostic marker for polycystic ovary syndrome
    • [38] Sahmay, S., Atakul, N., Aydogan, B., Aydin, Y., Imamoglu, M., Seyisoglu, H., Elevated serum levels of anti-Mullerian hormone can be introduced as a new diagnostic marker for polycystic ovary syndrome. Acta Obstet. Gyn Scan 92 (2013), 1369–1374.
    • (2013) Acta Obstet. Gyn Scan , vol.92 , pp. 1369-1374
    • Sahmay, S.1    Atakul, N.2    Aydogan, B.3    Aydin, Y.4    Imamoglu, M.5    Seyisoglu, H.6
  • 39
    • 60849107731 scopus 로고    scopus 로고
    • Anti-Mullerian hormone levels reflect severity of PCOS but are negatively influenced by obesity: relationship with increased luteinizing hormone levels
    • [39] Piouka, A., Farmakiotis, D., Katsikis, I., Macut, D., Gerou, S., Panidis, D., Anti-Mullerian hormone levels reflect severity of PCOS but are negatively influenced by obesity: relationship with increased luteinizing hormone levels. Am. J. Physiol-Endoc M. 296 (2009), E238–E243.
    • (2009) Am. J. Physiol-Endoc M. , vol.296 , pp. E238-E243
    • Piouka, A.1    Farmakiotis, D.2    Katsikis, I.3    Macut, D.4    Gerou, S.5    Panidis, D.6
  • 40
    • 84899972594 scopus 로고    scopus 로고
    • Vitamin D increases serum levels of the soluble receptor for advanced glycation end products in women with PCOS
    • [40] Irani, M., Minkoff, H., Seifer, D.B., Merhi, Z., Vitamin D increases serum levels of the soluble receptor for advanced glycation end products in women with PCOS. J. Clin. Endocrinol. Metab. 99 (2014), E886–E890.
    • (2014) J. Clin. Endocrinol. Metab. , vol.99 , pp. E886-E890
    • Irani, M.1    Minkoff, H.2    Seifer, D.B.3    Merhi, Z.4
  • 41
    • 84930959746 scopus 로고    scopus 로고
    • The role of vitamin D in reproductive health–a trojan horse or the golden fleece?
    • [41] Dabrowski, F.A., Grzechocinska, B., Wielgos, M., The role of vitamin D in reproductive health–a trojan horse or the golden fleece?. Nutrients 7 (2015), 4139–4153.
    • (2015) Nutrients , vol.7 , pp. 4139-4153
    • Dabrowski, F.A.1    Grzechocinska, B.2    Wielgos, M.3
  • 42
    • 84862084795 scopus 로고    scopus 로고
    • Vitamin D and fertility: a systematic review
    • [42] Lerchbaum, E., Obermayer-Pietsch, B., Vitamin D and fertility: a systematic review. Eur. J. Endocrinol. 166 (2012), 765–778.
    • (2012) Eur. J. Endocrinol. , vol.166 , pp. 765-778
    • Lerchbaum, E.1    Obermayer-Pietsch, B.2
  • 44
    • 84900413410 scopus 로고    scopus 로고
    • Vitamin D and female fertility
    • [44] Lerchbaum, E., Rabe, T., Vitamin D and female fertility. Curr. Opin. Obstet. Gyn 26 (2014), 145–150.
    • (2014) Curr. Opin. Obstet. Gyn , vol.26 , pp. 145-150
    • Lerchbaum, E.1    Rabe, T.2
  • 45
    • 84874108338 scopus 로고    scopus 로고
    • Vitamin D in human reproduction: a narrative review
    • [45] Anagnostis, P., Karras, S., Goulis, D.G., Vitamin D in human reproduction: a narrative review. Int. J. Clin. Pract. 67 (2013), 225–235.
    • (2013) Int. J. Clin. Pract. , vol.67 , pp. 225-235
    • Anagnostis, P.1    Karras, S.2    Goulis, D.G.3


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