1. http://cen.acs.org/articles/91/i5/New-Drug-Approvals-Hit-16.html.
2. http://www.accessdata.fda.gov/drugsatfda_docs/label/2012/203155s000lbl.pdf.
3. http://www.accessdata.fda.gov/drugsatfda_docs/label/2012/203100s000lbl.pdf.
4. http://www.accessdata.fda.gov/drugsatfda_docs/label/2012/201281s000lbl.pdf.
5. http://www.accessdata.fda.gov/drugsatfda_docs/label/2012/202270s000lbl.pdf.