title: Anniversary reactions.
mesh_terms: D000275:Adjustment Disorders / Q000209:etiology; D000293:Adolescent; D000328:Adult; D001007:Anxiety; D005260:Female; D006801:Humans; D008297:Male; D011602:Psychophysiologic Disorders / Q000209:etiology; D012569:Schizotypal Personality Disorder / Q000209:etiology