Feasibility is supported by the experience of one health plan in the US that conducted a "virtual all-payer" PCMH pilot. Their approach could serve as an inspiration also for policy-makers and health care administrators in the Nordic countries. Thus, health care has to be rationed in one way or another. This article by Luigi Siciliani reviews the relative merits of three different forms of rationing: i) price rationing, which takes the form of a co-payment or a coinsurance rate, and two forms of nonprice rationing, ii) rationing by waiting, when a patient is placed on a waiting list before receiving treatment, and iii) explicit rationing, when the patient is explicitly refused treatment.