title: Internal proficiency testing for hematology.
authors.affiliation: William Beaumont Hospital, Royal Oak, MI.
authors.forename: N E
authors.initials: NE
authors.lastname: Ferrence-Ramirez
authors.forename: N A
authors.initials: NA
authors.lastname: Procopio
mesh_terms: D019411:Clinical Laboratory Techniques / Q000592:standards*; D004650:Employee Performance Appraisal / Q000379:methods*; D006405:Hematology / Q000592:standards*; D006746:Hospital Bed Capacity, 500 and over; D006801:Humans; D007755:Laboratories, Hospital / Q000592:standards*; D017056:Medical Laboratory Personnel / Q000592:standards; D008824:Michigan; D011361:Professional Competence / Q000592:standards; D016730:Program Development / Q000379:methods; D011785:Quality Assurance, Health Care