 While the actual health needs of persons with disabilities, even severe disabilities, varies enormously, the conceptual link to health and human functioning means that health is not merely contingently related to disability, as gender, poverty or even quality of life are. Moreover, disability is not merely conceptually linked to health, it is linked to some problem with or decrement in health. This explains why the case of disability raises the priority problem in clear relief: every person with a disability is potentially a less-efficient health care resource user since they have an ex ante (pre-allocation) health problem. 