Value change in drug education: the role of encounter groups.
D000293:Adolescent; D000328:Adult; D000488:Allied Health Personnel / Q000193:education*; D001290:Attitude; D001291:Attitude of Health Personnel; D005260:Female; D006801:Humans; D008297:Male; D010414:Pennsylvania; D012681:Sensitivity Training Groups; D012938:Social Perception; D012945:Social Values; D019966:Substance-Related Disorders / Q000628:therapy*