bibliographicCitation |
Feng S, Cowling BJ, Kelly H, Sullivan SG. Estimating Influenza Vaccine Effectiveness With the Test-Negative Design Using Alternative Control Groups: A Systematic Review and Meta-Analysis. Am J Epidemiol. 2018 Feb 01;187(2):389–97. PMID: 28641373; PMCID: PMC5860156. |