1. Yeh H, Smoot E, Schoenfeld DA, Markmann JF. Geographic inequity in access to livers for transplantation. Transplantation. 2011;91(4):479–86.
2. Kwong AJ, Mannalithara A, Heimbach J, Prentice MA, Kim WR. Migration of patients for liver transplantation and waitlist outcomes. Clin Gastroenterol Hepatol. 2019;17(11):2347–55.
3. Organ Procurement and Transplantation Network (OPTN). Final Rule as revised by amendments [Internet]. Code of federal regulations (CFR), Washington, DC: US Government. 1999, pp 14–22. Available from: https://www.ecfr.gov/current/title-42/chapter-I/subchapter-K/part-121. [cited 2021 Sep 16].
4. Scientific Registry of Transplant Recipients. Analysis report: data request on circle based allocation [Internet]. 2018 [cited 2023 Oct 30]. Available from: https://optn.transplant.hrsa.gov/media/2640/li2018_01_analysis-report_20180924.pdf
5. OPTN Liver & Intestinal Transplantation Committee. Two year monitoring report of liver and intestine acuity circle allocation removal of DSA and region as units of allocation. 2022. Available from: https://optn.transplant.hrsa.gov/media/k5yi4jvl/data_report_liver_full_2yrallocation_20220805_final_508_compliant.pdf. This OPTN report summarizes the 2-year impact of acuity circle implementation on liver transplant allocation. Key findings include increased transplant rates for patients with MELD/PELD ≥29, increased median distance from donor hospital to transplant hospital, and no significant change in post-transplant survival.