TI - CLinical trials registration required PT - JOUR DP - 2006 TA - Archives of General Psychiatry pages = {629}, VI - 63 IP - 6 AID - 10.1001/archpsyc.63.6.629 [doi] 4100 - http://dx.doi.org/10.1001/archpsyc.63.6.629 SO - Archives of General Psychiatry June 1, 2006 63(6):629