Volume 53, Issue 09 May 7, 2006
... Ethinyl estradiol and levonorgestrel [Alesse, Aviane, Empressa, Lessina, Levite, Levlen, Levlite, Levora, Nordette, Portia, Preven, Seasonale, Triphasil,
Tri-Levlen, Trivora]
...
http://www.audio-digest.org/pages/htmlos/0016.1.8822290964737781952/OB5309