Young and old mix for mutual therapy.
D000368:Aged; D002675:Child, Preschool; D006801:Humans; D007398:Interpersonal Relations; D009518:New York; D009724:Nurseries, Infant / Q000458:organization & administration; D009735:Nursing Homes / Q000458:organization & administration*; D012960:Socioenvironmental Therapy