1. Quality control in the cytology laboratory;Melamed;Acta Cytol,1976
2. Quality control in cytopathology. A system for simultaneous monitoring of accuracy and education and for proficiency testing;Carney;Acta Cytol,1984
3. A quality control system involving peer review of abnormal cervical smears;Palli;Cytopathology,1993
4. Quality management in gynecologic cytology using interlaboratory comparison;Jones;Arch Pathol Lab Med,2000
5. American Society of Cytopathology (ASC) Quality Control and Quality Assurance Practices Cervical Cytology Practice Guideline https://www.cytopathology.org/quality-control-and-quality-assurance-practices/