Pacifiers, passive behaviour, and pain.
D000698:Analgesia / Q000379:methods*; D000818:Animals; D001519:Behavior / Q000502:physiology*; D006801:Humans; D007223:Infant; D007224:Infant Care; D007231:Infant, Newborn; D010146:Pain / Q000517:prevention & control*; D010147:Pain Measurement; D051381:Rats; D013395:Sucrose
D013395:Sucrose