1 Department of Medical Statistics, Clinical Trials Unit, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhong Shan Er Road, Guangzhou, 510080, China. zhouq49@mail.sysu.edu.cn.
2 ESIEE Paris, Cité Descartes BP99, 93162, Noisy-le-Grand, France.
3 Department of Liver Surgery, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhong Shan Er Road, Guangzhou, 510080, China.