Corrigendum: Improvement of Sepsis Prognosis by Ulinastatin: A Systematic Review and Meta-Analysis of Randomized Controlled Trials - Wang, Huifang; Liu, Bin; Tang, Ying; Chang, Ping; Yao, Lishuai; Huang, Bo; Lodato, Robert F.; Liu, Zhanguo (Frontiers in Pharmacology, 2020)