Reference:
1. MICROMEDEX® [Database on the internet]. levonorgestrel. Colorado: Thomson Reuters (Healthcare); c1974-2016. Available from: http://www.thomsonhc.com.
2. Lacy CF, Armstrong LL, Goldman PP, Lance LL. Drug information handbook with international trade names index. 25th ed. Ohio: Lexi-comp; 2016-2017:1487-8.
Keywords:
-