Useful resources |
20 mcg versus >20 mcg Estrogen combined oral contraceptives for contraception (Cochrane Review) ABSTRACT Background: Concern about estrogen-related adverse effects has led to progressive reductions in the estrogen dose in combination oral contraceptives (COCs). However, reducing the amount of estrogen to improve safety also could result in decreased contraceptive e . . . |
Full article: The full article is available on Wiley InterScience at http://www.thecochranelibrary.com |