R. Alsayadi

Effect of COVID-19 pandemic lockdowns on planned cancer surgery for 15 tumour types in 61 countries: an international, prospective, cohort study

Dinh Q. Phung, C. A. Shaw, M. Kumar, 2021, The Lancet Oncology.

Machine learning risk prediction of mortality for patients undergoing surgery with perioperative SARS-CoV-2: the COVIDSurg mortality score

Cheng Soon Ong, Mohammad Hossein Khosravi, Kevin C. Chu, 2021, The British journal of surgery.

Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 countries

Andrea I. Ramos, G. E. Jones, Abdullah A. Albarrak, 2022, The Lancet.

Early outcomes and complications following cardiac surgery in patients testing positive for coronavirus disease 2019: An international cohort study

Cheng Soon Ong, Mohammad Hossein Khosravi, Muhammad Abubakar Siddique, 2021, The Journal of Thoracic and Cardiovascular Surgery.