Risk factors of biliary infection after PTCD for patients with malignant obstructive jaundice 
Wang Fengyan, Hou Jian, Zhang Daoqiang, Gong Qi, Liu Chuanjie, Han Zhihao
International Medicine and Health Guidance News . 2022, (17): 2377 -2382 .  DOI: 10.3760/cma.j.issn.1007-1245.2022.17.002