title: Post-operative pain in toddler and pre-school age children.
mesh_terms: D002675:Child, Preschool; D005260:Female; D006552:Hernia, Inguinal / Q000601:surgery; D006801:Humans; D007223:Infant; D008297:Male; D009043:Motor Activity; D010149:Postoperative Pain / Q000523:psychology*; D014705:Verbal Behavior