title: Swimming--the hazards of taking a dip.
authors.affiliation: British Medical Journal, London.
authors.forename: A
authors.initials: A
authors.lastname: Walker
mesh_terms: D001493:Bathing Beaches / Q000592:standards; D005062:European Union; D006801:Humans; D007239:Infections / Q000209:etiology*; D012307:Risk Factors; D012623:Seawater; D012722:Sewage / Q000009:adverse effects*; D013550:Swimming; D006113:United Kingdom; D014876:Water Pollution
chemical_list: D012722:Sewage