Fig. 2From: A revealed preference analysis to develop composite scores approximating lung allocation policy in the U.SIllustration of allocation of lungs from deceased donors younger than 18 years old. The chart shows how medical priority, candidate age (younger than 1 year old, younger than 12 years old, and at least 12 years old), ABO (identical, compatible, and incompatible), and proximity define each of the 36 ordered classifications. Within each classification, candidates 12 or older are sorted by (descending) LAS, while younger candidates are sorted by (descending) waiting time. Image created by James Alcorn for the OPTN using Visio 2016Back to article page