title: The limitation of empirical research in ethics.
mesh_terms: D036262:Empirical Research; D028781:Ethical Relativism; D028663:Ethical Theory; D004992:Ethics, Medical; D028601:Euthanasia, Active; D006801:Humans; D009014:Morals; D010686:Philosophy, Medical; D010817:Physician-Patient Relations; D017236:Suicide, Assisted / Q000331:legislation & jurisprudence*