Psycho ludens; the relations between psychosis, psychoneurosis and playing:  a possible sequence.
D006801:Humans; D001523:Mental Disorders; D008610:Menthol; D009497:Neurotic Disorders / Q000523:psychology*; D010988:Play and Playthings; D011618:Psychotic Disorders / Q000523:psychology*
D008610:Menthol
NEUROSES/psychology; PSYCHOSES/psychology