title: DR. JOSEPH H. PRATT--TRAILBLAZER IN GROUP PSYCHOTHERAPY; AN EARLY EXPERIMENT IN GROUPNOSIS.
mesh_terms: D049673:History, 20th Century; D006990:Hypnosis; D008511:Medicine; D011613:Psychotherapy; D011615:Psychotherapy, Group
keywords: BIOGRAPHIES; HISTORY; HISTORY OF MEDICINE, 20TH CENT.; HYPNOSIS; PSYCHOTHERAPY, GROUP