Dr. Robert M. Ricketts on early treatment (part 1)
D000402:Airway Obstruction / Q000628:therapy; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008310:Malocclusion / Q000517:prevention & control*; D008445:Maxillofacial Development; D009972:Orthodontics, Interceptive / Q000379:methods*; D009973:Orthodontics, Preventive / Q000379:methods*