TY - RPRT TI - Training the nonprofessional group therapist. A controlled study. AU - G O Ebersole AU - P H Leiderman AU - I D Yalom PY - 1969 DO - 10.1097/00005053-196909000-00007 UR - https://pubmed.ncbi.nlm.nih.gov/5805754/ ID - 5805754 ER -