(2002). Synthetic hormone lowers ovarian cancer risk - study. Manila Bulletin.
Chicago Style (17th ed.) Citation"Synthetic Hormone Lowers Ovarian Cancer Risk - Study." Manila Bulletin 2002.
MLA引文"Synthetic Hormone Lowers Ovarian Cancer Risk - Study." Manila Bulletin, 2002.
警告：這些引文格式不一定是100％准確.