title: The "psy" function.
mesh_terms: D000293:Adolescent; D002648:Child; D002673:Child, Hospitalized / Q000523:psychology; D002675:Child, Preschool; D004194:Disease / Q000523:psychology*; D005190:Family; D006801:Humans; D008960:Models, Psychological; D009723:Nurse-Patient Relations; D009732:Nursing Care