Impact of misclassification of in vitro fertilisation in studies of folic acid and twinning: Modelling using population based Swedish vital records

British Medical Journal

Volumn 330, Issue 7495, 2005, Pages 815-818

  Berry, R J ^a   Kihlberg, Reinhold ^b   Devine, Owen ^a  

^a NATIONAL CENTER ON BIRTH DEFECTS AND DEVELOPMENTAL DISABILITIES   (United States)

^b Riddarvägen 37B 184 51 ^*  (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

FOLIC ACID;

ANALYTICAL ERROR; ARTICLE; CLASSIFICATION; DATA BASE; DIZYGOTIC TWINS; DRUG USE; FEMALE; FERTILIZATION IN VITRO; HUMAN; MAJOR CLINICAL STUDY; MODEL; NEURAL TUBE DEFECT; POPULATION RESEARCH; PREGNANCY; PRIORITY JOURNAL; SWEDEN; TWIN PREGNANCY; DIET SUPPLEMENTATION; INFORMATION PROCESSING; MULTIPLE PREGNANCY; RISK; STANDARD; STATISTICS;

DATA COLLECTION; DIETARY SUPPLEMENTS; FEMALE; FERTILIZATION IN VITRO; FOLIC ACID; HUMANS; ODDS RATIO; PREGNANCY; PREGNANCY, MULTIPLE; SWEDEN; TWINS, DIZYGOTIC;

EID: 17244373360     PISSN: 09598146     EISSN: None     Source Type: Journal    
DOI: 10.1136/bmj.38369.437789.82     Document Type: Article

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