title: [Use of phase-contrast microscopy for bacterial counting by a direct method in the qualitative evaluation of water].
mesh_terms: D058491:Bacterial Load; D008853:Microscopy; D008858:Microscopy, Phase-Contrast; D014867:Water; D014871:Water Microbiology; D014881:Water Supply / Q000382:microbiology*
chemical_list: D014867:Water
keywords: MICROSCOPY; WATER SUPPLY/microbiology