Evaluation of the effectiveness and safety of oral vancomycin versus placebo in the prevention of recurrence of Clostridioides difficile infection in patients under systemic antibiotic therapy: a phase III, randomised, double-blind clinical trial

评估口服万古霉素与安慰剂在预防接受全身抗生素治疗的患者艰难梭菌感染复发方面的有效性和安全性：一项 III 期随机双盲临床试验