Improved outcome into the 1990s for infants weighing 500-999 g at birth
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European Community collaborative study of outcome of pregnancy between 22 and 28 weeks' gestation
Working Group on the Very Low Birthweight Infant. European Community collaborative study of outcome of pregnancy between 22 and 28 weeks' gestation. Lancet 1990; 336: 782-4
Survival and neonatal morbidity at the limits of viability in the mid 1990s: 22 to 25 weeks
El Metwally D, Vohr B, Tucker R. Survival and neonatal morbidity at the limits of viability in the mid 1990s: 22 to 25 weeks. J Pediatr 2000; 137: 616-22
The EPICure study: Outcomes to discharge from hospital for infants born at the threshold of viability
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The Swedish national prospective study on extremely low-birthweight (ELBW) infants. Incidence, mortality, morbidity and survival in relation to level of care
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A national short-term follow-up study of extremely low birth weight infants born in Finland in 1996-1997
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ETFOL-extremely preterm and extremely low birth weight. Results form the prospective national study
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