Reducing emergency department visits for ear pain.
D002648:Child; D002669:Child Welfare; D004427:Ear Diseases / Q000175:diagnosis / Q000517:prevention & control*; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006801:Humans; D010146:Pain / Q000175:diagnosis / Q000517:prevention & control*; D011322:Primary Prevention