title: Variation and stability in Schistosoma haematobium egg counts: A four-year study of Gambian children.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005714:Gambia; D006801:Humans; D010270:Parasite Egg Count; D012548:Schistosoma haematobium; D012552:Schistosomiasis / Q000469:parasitology* / Q000635:transmission; D012621:Seasons; D014556:Urine / Q000469:parasitology