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
Raghunathan K, Layton JB, Ohnuma T, Shaw AD. Observational research using propensity scores. Adv Chronic Kidney Dis. 2016 Nov;23(6):367-72. doi: 10.1053/j.ackd.2016.11.010
Cann CI, Fried MP, Rothman KJ. Epidemiology of squamous-cell cancer of the head and neck. Otolaryngol Clin N Am. 1985 Aug 1;18(3):367-88.