De Wals, P., Boulianne, N., Sévin, E., Ouakki, M., Deceuninck, G., & Guay, M. (2009). Uptake of Pneumococcal Conjugate Vaccine: Methodological Issues in Measurement and Impact of Publicly Funded Programs. Can J Public Health.

De Wals, Philippe, Nicole Boulianne, Elodie Sévin, Manale Ouakki, Geneviève Deceuninck, και Maryse Guay. "Uptake of Pneumococcal Conjugate Vaccine: Methodological Issues in Measurement and Impact of Publicly Funded Programs." Can J Public Health 2009.

De Wals, Philippe, et al. "Uptake of Pneumococcal Conjugate Vaccine: Methodological Issues in Measurement and Impact of Publicly Funded Programs." Can J Public Health 2009.