title: How to estimate the vaccine effectiveness precisely.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Liang
authors.forename: Wang
authors.initials: W
authors.lastname: Ling
authors.forename: Shi
authors.initials: S
authors.lastname: Lei
authors.forename: Xia
authors.initials: X
authors.lastname: Jielai
mesh_terms: D035843:Biomedical Research / Q000379:methods*; D004812:Epidemiologic Methods; D006801:Humans; D014612:Vaccines / Q000276:immunology*
chemical_list: D014612:Vaccines