Crying and non-crying babies.
D000293:Adolescent; D000342:Affective Symptoms / Q000209:etiology; D002648:Child; D002653:Child Behavior Disorders / Q000209:etiology; D002675:Child, Preschool; D003448:Crying; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009034:Mother-Child Relations; D011674:Pulse