@BOOK{NAP6403, author = "Institute of Medicine", title = "Contraceptive Research, Introduction, and Use: Lessons From Norplant, Summary", doi = "10.17226/6403", url = "https://nap.nationalacademies.org/catalog/6403/contraceptive-research-introduction-and-use-lessons-from-norplant-summary", year = 1998, publisher = "The National Academies Press", address = "Washington, DC" }