Active surveillance of vaccine safety: a system to detect early signs of adverse events.
Davis RL, Kolczak M, Lewis E, et al. Active surveillance of vaccine safety: a system to detect early signs of adverse events. Epidemiology. 2005;16(3):336-41.
Davis RL, Kolczak M, Lewis E, et al. Active surveillance of vaccine safety: a system to detect early signs of adverse events. Epidemiology. 2005;16(3):336-41.