Effect of mother presence on children's reaction to aversive procedures.
D002652:Child Behavior; D002675:Child, Preschool; D003448:Crying; D005260:Female; D006801:Humans; D007223:Infant; D007267:Injections / Q000523:psychology; D008297:Male; D009034:Mother-Child Relations; D010146:Pain / Q000523:psychology*