?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Menni%2C+C&rft.aulast=Menni&rft.aufirst=C&rft.volume=21&rft.atitle=Vaccine+side-effects+and+SARS-CoV-2+infection+after+vaccination+in+users+of+the+COVID+Symptom+Study+app+in+the+UK%3A+a+prospective+observational+study.&rft.title=Lancet+Infectious+Diseases&rft.issue=7&rft.date=1+July+2021&rft.pages=939-949&rft.genre=article