title: Crisis theory: a definitional study.
mesh_terms: D000223:Adaptation, Psychological; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003071:Cognition; D003156:Community Mental Health Services; D003419:Crisis Intervention; D003674:Defense Mechanisms; D004243:Divorce; D004644:Emotions; D005260:Female; D006117:Grief; D006801:Humans; D007063:Identity Crisis; D008950:MMPI; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis; D008875:Middle Aged; D008960:Models, Psychological; D011581:Psychological Tests; D012649:Self Concept; D012737:Sex Factors; D013315:Stress, Psychological