By Singer Jamie J.   MacGregor Alex J.   Spector Tim D.   in Twin Research and Human Genetics

ISSN:1832-4274|8|2|108-112

Australian Academic Press‎(2005)‎

Access to resources Favorite 9.386988

By Singer Jamie J.   Falchi Mario   MacGregor Alex J.   Cherkas Lynn F.   Spector Tim D.   in Behavior Genetics

ISSN:0001-8244|36|1|18-28

Springer Publishing Company ‎(2006)‎

Access to resources Favorite 7.829464