Randomized Controlled Trial
Efficacy of carbon dioxide-insufflating colonoscopy in patients with irritable bowel syndrome: a randomized double-blind study.
J. Gastroenterol. Hepatol. 2012 Oct 1;27(10):1623-8.
Randomized Controlled Trial
Carbon dioxide insufflation in open-chamber cardiac surgery: a double-blind, randomized clinical trial of neurocognitive effects.
J. Thorac. Cardiovasc. Surg.. 2012 Sep 1;144(3):646-653.e1.
Randomized Controlled Trial
Helium vs carbon dioxide gas insufflation with or without saline lavage during laparoscopy.
Surg Endosc. 2002 Apr 1;16(4):620-5.