Liu, N., Sprague, A. E., Yasseen, A. S., Fell, D. B., Wen, S., Smith, G. N., & Walker, M. C. (2012). Vaccination Patterns in Pregnant Women During the 2009 H1N1 Influenza Pandemic: A Population-based Study in Ontario, Canada. Can J Public Health.

Liu, Ning, Ann E. Sprague, Abdool S. Yasseen, Deshayne B. Fell, Shi-Wu Wen, Graeme N. Smith, و Mark C. Walker. "Vaccination Patterns in Pregnant Women During the 2009 H1N1 Influenza Pandemic: A Population-based Study in Ontario, Canada." Can J Public Health 2012.

Liu, Ning, et al. "Vaccination Patterns in Pregnant Women During the 2009 H1N1 Influenza Pandemic: A Population-based Study in Ontario, Canada." Can J Public Health 2012.