S. M. Gowri Vishalakshi, Poonam Gupta, and Pardeep Kumar Verma, “Utility of Serum Procalcitonin as a Biomarker to Determine the Duration of Antibiotic Therapy in Adult Patients with Sepsis and Septic Shock in Intensive Care Units”, RDMMR-V5, pp. 46–53, Oct. 2021.