title: Plasma cortisol levels and behavioral states in early infancy.
mesh_terms: D001034:Apgar Score; D001519:Behavior; D001724:Birth Weight; D002944:Circumcision, Male; D003448:Crying; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D007223:Infant; D007231:Infant, Newborn; D012737:Sex Factors; D012890:Sleep; D013315:Stress, Psychological
chemical_list: D006854:Hydrocortisone