Early mother-infant interaction and 24-hour patterns of activity and sleep.
D000222:Adaptation, Physiological; D000223:Adaptation, Psychological; D002652:Child Behavior; D002940:Circadian Rhythm; D003448:Crying; D005260:Female; D006801:Humans; D007223:Infant; D007224:Infant Care; D008425:Maternal Behavior; D008991:Monitoring, Physiologic; D009034:Mother-Child Relations; D009043:Motor Activity; D012890:Sleep; D013997:Time Factors