Dear Sir,.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004503:Education, Medical, Graduate / Q000592:standards; D006801:Humans; D007223:Infant; D007396:Internship and Residency; D008875:Middle Aged; D009326:Naval Medicine / Q000592:standards*; D009907:Optometry / Q000193:education*