Seeger JD, Schneeweiss S, Doherty M, Dey D, Rivero E. Pattern of Visudyne® use among patients enrolled in a US health insurance database. Poster presented at the 23rd International Conference on Pharmacoepidemiology and Therapeutic Risk Management; August 2007. Quebec City, Canada. [abstract] Pharmacoepidemiol Drug Saf. 2007 Aug 20; 16(Suppl 2):S105.