Collins, D N Quality evaluation of cytology laboratories in New York State: expanded program, 1971-73. [electronic resource] - Acta cytologica - 404-13 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0001-5547 Subjects--Topical Terms: Cell BiologyCytodiagnosisEvaluation Studies as TopicFemaleHumansLaboratories--standardsNew YorkQuality ControlSputum--cytologyStaining and LabelingStatistics as TopicTime FactorsVagina--pathologyVaginal Smears