1) Magee WJ et al:Arch Gen Psychiatry 52:230-237, 1996
2) Lepine JP:J Clin Psychiatry 62:4-10, 2001
4) Lepin JP:J Clin Psychiatry 63:4-8, 2002
5) Schneider FR et al:Arch Gen Psychiatry 49:282-288, 1992