PFIZER INC.; DIDIUK, Mary; FILIPSKI, Kevin J.; GUZMAN-PEREZ, Angel; LEE, Esther C.; PFEFFERKORN, Jeffrey A.; STEVENS, Benjamin; TU, Meihua Patent: WO2013/14569 A1, 2013 ; Location in patent: Page/Page column 40 ; WO 2013/014569 A1