title: Periodic health examination, 1989 update: 3. Preschool examination for developmental, visual and hearing problems. Canadian Task Force on the Periodic Health Examination.
mesh_terms: D002170:Canada; D002675:Child, Preschool; D002658:Developmental Disabilities / Q000175:diagnosis / Q000517:prevention & control*; D006311:Hearing Disorders / Q000175:diagnosis / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening; D011315:Preventive Medicine; D013997:Time Factors; D014786:Vision Disorders / Q000175:diagnosis / Q000517:prevention & control*