Original Artical: PDF OnlyParacervical Blocks Results of a Double-blind EvaluationSEEDS, A. ELMORE JR. M.D.; STEIN-MESSINGER, PAUL M.D.; DORSEY, JAMES H. M.D. Author Information From the Department of Gynecology and Obstetrics, The Johns Hopkins University and Hospital, Baltimore, Md. Obstetrics & Gynecology 20(4):p 462-467, October 1962. Buy © 1962 The American College of Obstetricians and Gynecologists