Wassilak, S. G., Oberste, M. S., Tangermann, R. H., Diop, O. M., Jafari, H. S., & Armstrong, G. L. (2014). Progress toward Global Interruption of Wild Poliovirus Transmission, 2010–2013 and Tackling the Challenges to Complete Eradication. J Infect Dis.

Wassilak, Steven G.F., M. Steven Oberste, Rudolph H. Tangermann, Ousmane M. Diop, Hamid S. Jafari, et Gregory L. Armstrong. "Progress Toward Global Interruption of Wild Poliovirus Transmission, 2010–2013 and Tackling the Challenges to Complete Eradication." J Infect Dis 2014.

Wassilak, Steven G.F., et al. "Progress Toward Global Interruption of Wild Poliovirus Transmission, 2010–2013 and Tackling the Challenges to Complete Eradication." J Infect Dis 2014.