By Knopik Valerie S   DeFries John C   in Twin Research

ISSN:1369-0523|2|3|226-234

Australian Academic Press‎(1999)‎

Access to resources Favorite 17.812197

By Davis Chayna J   Knopik Valerie S   Wadsworth Sally J   DeFries John C   in Twin Research

ISSN:1369-0523|3|2|88-91

Australian Academic Press‎(2000)‎

Access to resources Favorite 11.874799

By Wadsworth Sally J.   DeFries John C.   in Twin Research and Human Genetics

ISSN:1832-4274|8|6|594-601

Australian Academic Press‎(2005)‎

Access to resources Favorite 6.802058

By Tiu Rolando D.   Wadsworth Sally J.   Olson Richard K.   DeFries John C.   in Twin Research

ISSN:1369-0523|7|3|275-283

Australian Academic Press‎(2004)‎

Access to resources Favorite 4.5347056