Orlebeke, J F Birth weight in opposite sex twins as compared to same sex dizygotic twins. [electronic resource] - European journal of obstetrics, gynecology, and reproductive biology Jul 1993 - 95-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0301-2115 Standard No.: 10.1016/0028-2243(93)90171-8 doi Subjects--Topical Terms: Birth OrderBirth WeightFemaleHumansInfant, NewbornMaleSex FactorsTwins, DizygoticTwins, Monozygotic