title: Improving on haves and have-nots.
authors: WHO's headquarters in Geneva, Switzerland.
authors: Jamie
authors: J
authors: Bartram
mesh_terms: D019985:Benchmarking; D014943:Global Health; D006801:Humans; D038622:Internationality; D012499:Sanitation / Q000191:economics* / Q000592:standards / Q000706:statistics & numerical data* / Q000639:trends; D012923:Social Class; D014480:United Nations; D014881:Water Supply / Q000191:economics / Q000592:standards / Q000706:statistics & numerical data; D014944:World Health Organization