Really enjoyed your response to Art Caplan’s comment. The whole question of rationing is why we need bioethicists like you. I always meant to write up a summary of this article in The Lancet — “Principles for allocation of scarce medical interventions” (http://www.lancet.com/journals/lancet/article/PIIS0140-6736%2809%2960137-9/abstract) — but now it’s four years old. Don’t know if thinking has changed.