title: The search for parameters.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002986:Clinical Trials as Topic; D004522:Educational Status; D004812:Epidemiologic Methods; D004813:Epidemiology; D005191:Family Characteristics; D005260:Female; D005843:Geography; D006760:Hospitalization; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D009664:Norway; D011602:Psychophysiologic Disorders / Q000175:diagnosis / Q000453:epidemiology; D011611:Psychosomatic Medicine; D012042:Registries; D012107:Research Design; D012392:Rorschach Test; D012737:Sex Factors; D012917:Social Adjustment; D012923:Social Class