title: Pleural effusion in the Department of Child Health, Medical School, University of North Sumatera/Dr. Pirngadi General Hospital Medan.
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007214:Indonesia; D007223:Infant; D008297:Male; D010996:Pleural Effusion / Q000150:complications / Q000453:epidemiology*; D012189:Retrospective Studies