A randomised controlled trial to compare opt-in and opt-out parental consent for childhood vaccine safety surveillance using data linkage: study protocol
Berry, J. G., Ryan, P., MS Gold, M. S., Braunack-Mayer, A. J. & Duszynski, K. M. (2011). A randomised controlled trial to compare opt-in and opt-out parental consent for childhood vaccine safety surveillance using data linkage: study protocol. Journal of Medical Ethics, 38 619-625.
Berry, J. G., Ryan, P., MS Gold, M. S., Braunack-Mayer, A. J. & Duszynski, K. M. (2011). A randomised controlled trial to compare opt-in and opt-out parental consent for childhood vaccine safety surveillance using data linkage: study protocol. Journal of Medical Ethics, 38 619-625.