Severity and outcomes of Omicron variant of SARS-CoV-2 compared to Delta variant and severity of Omicron sublineages: a systematic review and metanalysis.
Pryanka RelanNkengafac Villyen MotazeKavita KothariLisa AskieOlivier Le PolainMaria D Van KerkhoveJanet DiazBharath Kumar Tirupakuzhi Vijayaraghavan MdPublished in: BMJ global health (2023)
CRD42022310880.