1. Beauchamp T, Childress J (2000) Principles of biomedical ethics. Oxford University Press, Oxford
2. Beckman HB, Frankel RM (1984) The effect of physician behavior on the collection of data. Ann Intern Med 101(5):692–696
3. Brett AS, McCullough L (1986) When patients request specific interventions. N Engl J Med 315(21):1347–1351
4. Campbell E Jr, Lynn C (1990) The physical examination. In: Walker HK, Hall WD, Hurst JW (eds) Clinical methods: the history, physical, and laboratory examinations, 3rd edn. Butterworths, Boston
5. Clarke B, Gillies D, Illari P, Russo F, Williamson J (2014) Mechanisms and the evidence hierarchy. Topoi 33(2):339–360