A specific laboratory test for the diagnosis of melancholia. Standardization, validation, and clinical utility. - Carroll,B.J.; Feinberg,M.; Greden,J.F.; Tarika,J.; Albala,A.A.; Haskett,R.F.; James,N.M.; Kronfol,Z.; Lohr,N.; Steiner,M.; de Vigne,J.P.; Young,E. (Arch Gen Psychiatry, 1981)