Risk of Intensive Care Unit admission or mortality in patients hospitalised for COVID-19 during the first two waves: An Italian cohort study.

Sacerdote C, Milani L, Castiglione A, Pagano E, Migliore E, Albera C, Bo M, Brazzi L, De Rosa FG, Durazzo M, Lupia E, Montrucchio G, Pivetta E, Porta M, Scaglione L, Veglio F, Zanierato M, Ricceri F, Caramello V, Scozzari G, Scarmozzino A; Giovannino Ciccone & COVID-EASYNET working group.

J Infect 2022; 85: 436-480. doi: 10.1016/j.jinf.2022.06.023. Epub 2022 Jun 30. PMID: 35781015

https://pubmed.ncbi.nlm.nih.gov/35781015/