COVID-19 Severity and Waning Immunity After up to 4 mRNA Vaccine Doses in 73 608 Patients With Cancer and 621 475 Matched Controls in Singapore A Nationwide Cohort Study

by Tan, Wei Chong, Tan, Janice Yu Jin, Lim, Joline Si Jing, Tan, Ryan Ying Cong, Lee, Ainsley Ryan Yan Bin, Leong, Fun Loon, Lee, Soo Chin, Chai, Louis Yi Ann, Tan, Thuan Tong, Malek, Muhammad Ismail Bin Abdul, Ong, Benjamin, Lye, David Chien, Chiew, Calvin J, Chng, Wee Joo, Lim, Soon Thye, Bharwani, Lavina D, Tan, Iain Beehuat, Sundar, Raghav, Tan, Kelvin Bryan
Published 2023