title: beta-Endorphin and specific clinical symptoms of depression.
authors.forename: H M
authors.initials: HM
authors.lastname: Kravitz
mesh_terms: D003866:Depressive Disorder / Q000175:diagnosis*; D006801:Humans; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data*; D011594:Psychometrics; D012107:Research Design / Q000592:standards; D013223:Statistics as Topic