title: Nostalgia: a "forgotten" psychological disorder.
mesh_terms: D000275:Adjustment Disorders; D001010:Anxiety, Separation; D005060:Europe; D005260:Female; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008297:Male; D008887:Military Medicine / Q000266:history; D013557:Switzerland; D014481:United States