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Prospective Study
Novel device for monitoring respiratory rate during endoscopy-A thermodynamic sensor 
Vaibhav Wadhwa, Adalberto J Gonzalez, Kristen Selema, Ronen Feldman, Rocio Lopez, John J Vargo 
World J Gastrointest Pharmacol Ther 10(3):57-66. Published online Jul 18, 2019. doi: 10.4292/wjgpt.v10.i3.57