%0 Journal Article %T A Comparative Efficacy of Low-Dose Combined Oral Contraceptives Containing Desogestrel and Drospirenone in Premenstrual Symptoms %A Jirath Wichianpitaya %A Surasak Taneepanichskul %J Obstetrics and Gynecology International %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/487143 %U http://dx.doi.org/10.1155/2013/487143