Original Article: PDF OnlyFlicker Fusion Threshold Nitroglycerine response as a screening test for toxemia of pregnancyRODDICK, J W M.D.; BENARON, HARRY B. W. M.D. Author Information From the Chicago Maternity Center and the Department of Obstetrics and Gynecology, Northwestern University Medical School and Wesley Memorial Hospital, Chicago, Illinois Obstetrics & Gynecology 4(3):p 260-263, September 1954. Buy © 1954 The American College of Obstetricians and Gynecologists