Serotonergic gene polymorphisms (5-HTTLPR, 5HTR1A, 5HTR2A), and population differences in aggression: traditional (Hadza and Datoga) and industrial (Russians) populations compared oleh Marina L. Butovskaya, Polina R. Butovskaya, Vasiliy A. Vasilyev, Jane M. Sukhodolskaya, Dania I. Fekhredtinova, Dmitri V. Karelin, Julia N. Fedenok, Audax Z. P. Mabulla, Alexey P. Ryskov, Oleg E. Lazebny