title: The spectrum of seven preventable diseases at Dr. Pirngadi Hospital Medan, Indonesia.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003141:Communicable Diseases / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007214:Indonesia; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D012189:Retrospective Studies; D012737:Sex Factors