Relative Risk of Cervical Neoplasms Among Copper and Levonorgestrel Intrauterine Device Users

Matthew E. Spotnitz, M.D., M.P.H. 1,2, Karthik Natarajan Ph.D. 1,2, Patrick B. Ryan, Ph.D. 1,2, and Carolyn L. Westhoff, M.D., M.Sc. 1

1 Columbia University Medical Center, New York, NY; 2Observational Health Data Sciences and Informatics, New York, NY


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