This document summarizes and comments on a paper examining the impact of mandated hospital choice for coronary artery bypass graft surgery in England after 2006. It finds that allowing patients to choose higher-quality hospitals reduced mortality by 3%. The document then provides several pedantic comments and questions about the data and analysis, including questioning the measures of hospital quality, mortality rates, and generalizability given the small number of specialist hospitals studied. It also raises issues about how patient choice is actually exercised and the role of spatial competition between hospitals.