"There's no evidence to support the use of [Experimental Treatment] on [Poorly Understood Illness]" Key question: Has it _been_ studied, or is this "no one has bothered looking?" This is one of those things that drives me nuts. It's one of the core problems with a lot of doctors, who prioritize Nonmaleficence over the other three pillars of bioethics (Beneficence, Autonomy, Justice).