Field studies on school children in rural and urban areas in Egypt.
D000740:Anemia / Q000453:epidemiology; D002648:Child; D002664:Child Nutritional Physiological Phenomena; D004534:Egypt; D006128:Growth; D006801:Humans; D010272:Parasitic Diseases / Q000453:epidemiology; D012424:Rural Population; D013290:Streptococcal Infections / Q000453:epidemiology; D014505:Urban Population