Li, Nina, and Huiyan Zhang. “Effects of Tigecycline Combined With Cefoperazone on Bacterial Clearance and Serum Biochemical Indexes in Patients With Pulmonary Infections in ICU”. Pakistan Journal of Medical Sciences 38, no. 6 (July 5, 2022). Accessed May 7, 2024. https://www.pjms.org.pk/index.php/pjms/article/view/5872.