1. American Society for Colposcopy and Cervical Pathology: Management guidelines,
www.ASCCP.org
2. American Cancer Society,
http://www.cancer.org
3. American Society of Cytopathology,
www.cytopathology.org
4. Atkinson BF. Atlas of Diagnostic Cytopathology. 2nd ed. Philadelphia, PA: W.B. Saunders Company, 2004.
5. Bibbo M, Wilbur D (eds.) Comprehensive Cytopathology. 3rd ed. Philadelphia, PA: Elsevier, 2008.