Fermann GJ, Cash BD, Coelho-Prabhu N, Maegele M, Bingisser R, Sehgal V, Cohen AT, Golden AH, Russo J, Price M, Mangel A, Koch B, Christoph MJ, Milling, Jr. TJ. Definition of factor Xa inhibitor–related, life-threatening gastrointestinal bleeding and guidance on when to use reversal therapy: a Delphi panel. J Am Coll Emerg Physicians Open. 2023 Oct 2;4(5):e13043. doi: 10.1002/emp2.13043
Campo R, Brullet E, Montserrat A, Calvet X, Rivero E, Brotons C. Topical pharyngeal anesthesia improves tolerance of upper gastrointestinal endoscopy: a randomized double-blind study. Endoscopy. 1995 Nov;27(9):659-64.