Ethically optimised designs.
D002986:Clinical Trials as Topic / Q000379:methods*; D035061:Control Groups; D026689:Ethical Analysis; D004992:Ethics, Medical; D006801:Humans; D028681:Moral Obligations; D018579:Patient Selection; D011336:Probability; D011897:Random Allocation; D012107:Research Design / Q000592:standards*; D035842:Research Subjects; D006113:United Kingdom