Ho HJ, Tan YR, Cook AR, Koh G, et al. Increasing Influenza and Pneumococcal Vaccination Uptake in Seniors Using
Point-of-Care Informational Interventions in Primary Care in Singapore: A
Pragmatic, Cluster-Randomized Crossover Trial. Am J Public Health 2019;109:1776-1783.
PMID: 31622142