@article{astandardisedprotocolforassessmentof,
  title = {A standardised protocol for assessment of relative SARS-CoV-2 variant severity, with application to severity risk for COVID-19 cases infected with Omicron BA.1 compared to Delta variants in six European countries},
  author = {Tommy Nyberg and Peter Bager and Ingrid Bech Svalgaard and Dritan Bejko and Nick Bundle and Josie Evans and Tyra Grove Krause and Jim McMenamin and Joël Mossong and Heather Mutch and Ajibola Omokanye and André Peralta-Santos and Pedro Pinto Leite and Jostein Starrfelt and Simon Thelwall and Lamprini Veneti and Robert Whittaker and John Wood and Richard Pebody and Anne M Presanis},
  year = {2023},
  eprint = {2303.05541},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2303.05541v1},
}