title: Some problems in microscopy encountered in clinics for sexually transmitted disease.
abstract: The actual field diameter of 24 microscopes used in clinics for sexually transmitted diseases has been measured by means of a stage micrometer. The variation in findings is given, and the difficulties in producing accurate measurements are discussed.
mesh_terms: D007958:Leukocyte Count; D008858:Microscopy, Phase-Contrast / Q000295:instrumentation; D055095:Optics and Photonics; D012749:Sexually Transmitted Diseases / Q000473:pathology*; D014526:Urethritis / Q000473:pathology