title: Otitis externa infections related to Pseudomonas aeruginosa levels in five Ontario lakes.
mesh_terms: D001493:Bathing Beaches; D006801:Humans; D009864:Ontario; D010032:Otitis Externa / Q000635:transmission*; D011552:Pseudomonas Infections / Q000635:transmission*; D011550:Pseudomonas aeruginosa / Q000145:classification; D014871:Water Microbiology