Negro group dynamics.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D005190:Family; D005260:Female; D006126:Group Processes; D006801:Humans; D008297:Male; D008603:Mental Health; D010379:Peer Group; D010817:Physician-Patient Relations; D012069:Religion and Psychology; D012737:Sex Factors; D012940:Social Problems; D012959:Socioeconomic Factors; D013475:Superego; D014481:United States; D014505:Urban Population