Chandra, Alka, Vijay Thakur, Nikhil Bhasin, and Dheeraj Gupta. 2019. “The Role of Pre-Operative Investigations in Relatively Healthy General Surgical Patients- a Retrospective Study”. Anaesthesia, Pain & Intensive Care, January, 241-44. https://mail.apicareonline.com/index.php/APIC/article/view/432.