Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Minal K. Patel and Isabel Bergeri and Joseph S. Bresee and Benjamin J. Cowling and Natasha S. Crowcroft and Kamal Fahmy and Siddhivinayak Hirve and Gagandeep Kang and Mark A. Katz and Claudio F. Lanata and Maïna L'Azou Jackson and Sudhir Joshi and Marc Lipsitch and Jason M. Mwenda and Francisco Nogareda and Walter A. Orenstein and Justin R. Ortiz and Richard Pebody and Stephanie J. Schrag and Peter G. Smith and Padmini Srikantiah and Lorenzo Subissi and Marta Valenciano and David W. Vaughn and Jennifer R. Verani and Annelies Wilder-Smith and Daniel R. Feikin,Evaluation of post-introduction COVID-19 vaccine effectiveness: Summary of interim guidance of the World Health Organization,Vaccine,0264-410X,Elsevier BV,2021-07,39,30,4013-4024,https://cir.nii.ac.jp/crid/1360298343112044800,https://doi.org/10.1016/j.vaccine.2021.05.099