title: The reticulocyte. An approach to definition.
abstract: Experiences of the CAP Survey Program in reticulocyte counts and morphologic identification of reticulocytes from 1971 to 1974 are reviewed. Problems of morphologic identification are reflected in an excessive variance of reticulocyte counts. Statistical sources of variations in counting are identified. The older, original descriptions and definitions of morphologic criteria are reviewed and discussed in relationship to Survey performance.
mesh_terms: D000704:Analysis of Variance; D004906:Erythrocyte Count; D007753:Laboratories / Q000592:standards*; D010336:Pathology; D012156:Reticulocytes / Q000166:cytology; D012955:Societies, Medical; D014481:United States