Publications/Resources
Council researchers' names appear in boldface type.

2006
"The one-year contraceptive ring: A technology in development," brochure. New York: Population Council. (PDF)

2005
Fraser, Ian S., Edith Weisberg, Vivian Brache, Francisco Alvarez, Rebeca Massai, Daniel R. Mishell, Jr., D. Apter, J. Gale, Yun-yen Tsong, and Irving Sivin. "Serum Nestorone® and ethinyl estradiol levels, and ovulation inhibition in women using three different dosage combinations of a Nestorone progestogen-ethinyl estradiol contraceptive vaginal ring on a bleeding-signaled regimen," Contraception 72(1): 40–45. (abstract) (offsite link)

Sivin, Irving, Daniel R. Mishell, Jr.; Francisco Alvarez, Vivian Brache, Kaisa Elomaa, Pekka Lähteenmäki, Rebeca Massai, Patricia Miranda, Horacio Croxatto, Catherine Dean, Margaret Small, Harold Nash, and Theodore M Jackanicz. “Contraceptive vaginal rings releasing Nestorone and ethinylestradiol: A 1-year dose-finding trial,” Contraception 71(2):122–129. (abstract)

2004
Johansson, Elof and Régine Sitruk-Ware. “New delivery systems in contraception: Vaginal rings,” American Journal of Obstetrics and Gynecology 190(suppl 1): S54–S59. (abstract)

"Moving a contraceptive vaginal ring closer to market," Population Council Annual Report 2003. New York: Population Council. (full text)

2003
Sitruk-Ware, Régine, Margaret Small, Narender Kumar, Yun-Yen Tsong, Kalyan Sundaram, and Theodore Jackanicz. “Nestorone: Clinical applications for contraception and HRT,” Steroids 68(10–13): 907–913.*