1. History of oral contraception;Dhont;Eur J Contracept Reprod Health Care,2010
2. Chemical birth of the pill;Djerassi;Am J Obstet Gynecol,2006
3. Combined oral contraceptives;Nelson,2007
4. In the news, now on the shelf: a novel estradiol-based OC;Barbieri;OBG Management,2010
5. After 50 years of ethinylestradiol, another oestrogen in combined oral contraceptives;Alsina;Eur J Contracept Reprod Health Care,2010