title: Studies on bladder stone disease in Egyptian children. II. Methodology and general aspects of the disease.
mesh_terms: D001789:Blood Group Antigens; D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D001744:Urinary Bladder Calculi / Q000175:diagnosis / Q000453:epidemiology
chemical_list: D001789:Blood Group Antigens