Open Access
Booster vaccination with inactivated whole-virus or mRNA vaccines and COVID-19–related deaths among people with multimorbidity: a cohort study
Francisco Tsz Tsun Lai, Vincent Ka Chun Yan, Xuxiao Ye, Tiantian Ma, Xiwen Qin, Celine Sze Ling Chui, Xue Li, Eric Yuk Fai Wan, Carlos King Ho Wong, Ching Lung Cheung, Philip Hei Li, Bernard Man Yung Cheung, Chak Sing Lau, Ian Chi Kei Wong and Esther Wai Yin Chan