Enoch Enoch MA MA Hodgkinson Hodgkinson CA CA Yuan Yuan Q Q The influence of GABRA2, childhood trauma, and their interaction on alcohol, heroin, and cocaine dependence The influence of GABRA2, childhood trauma, and their interaction on alcohol, heroin, and cocaine dependence Biol Psychiatry Biol Psychiatry 2010 2010 67 67 20 20 27 27 supplied-pmid 19833324? Here, GABRA2 is linked to cocaine dependence.