1. Fetal and infant origins of adult disease;Barker,1992
2. The biology of twinning;Bulmer,1970
3. Intrauterine growth of twins as estimated from liveborn birth-weight data;Naeye;Pediatrics,1966
4. Environmental influences on twins apparent at birth;Gruenwald;Biol Neonate,1970
5. Effects of type of placentation on birthweight and its variability in monozygotic and dizygotic twins;Corey;Acta Genet Med Gemellol,1979