title: Psycho-social transitions: a field for study.
mesh_terms: D000223:Adaptation, Psychological; D000339:Affect; D003674:Defense Mechanisms; D003863:Depression; D004644:Emotions; D006117:Grief; D006801:Humans; D001523:Mental Disorders / Q000209:etiology*; D012106:Research; D012917:Social Adjustment; D013315:Stress, Psychological