Central Venous-arterial Carbon Dioxide Difference (pCO2 gap) as a Guide to Predict Complications in Postoperative High-risk Surgical Patients: A Prospective Observational Study. - Kaur, Amandeep; Paul, Gunchan; Gautam, Parshotam L.; Sama, Ayushi; Singh, Vikram P. (Indian Journal of Critical Care Medicine, 2026)