Sobti, V., K. Krishnaprasad, and A. Bhargava. “An Epidemiological Survey to Assess the Clinical Use of Cephalosporins in Community-Acquired Respiratory Tract Infections”. International Journal of Basic & Clinical Pharmacology, vol. 4, no. 3, Jan. 2017, pp. 547-50, doi:10.18203/2319-2003.ijbcp20150037.