1.Use of 'High Risk' Antibiotics in Hospitals May Up Risk for C. Diff—Four antibiotic classes linked with heightened infection risk.by Molly Walker, Associate Editor, MedPage Today.September 16, 2019.
2.Ying P. Tabak,Arjun Srinivasan.et al.Hospital-level high-risk antibiotic use in relation to hospital-associated Clostridioides difficile infections: Retrospective analysis of 2016–2017 data from US hospitals.Infect Control Hosp Epidemiol. 2019 Sep 16:1-7.