Prendergast, T J; Luce, J M (1997). "Increasing incidence of withholding and withdrawal of life support from the critically ill". American Journal of Respiratory and Critical Care Medicine. 155 (1): 15–20. doi:10.1164/ajrccm.155.1.9001282. PMID9001282.
Vincent, Jean-Louis (August 1999). "Forgoing life support in western European intensive care units". Critical Care Medicine. 27 (8): 1626–33. doi:10.1097/00003246-199908000-00042. PMID10470775.
Prendergast, T J; Luce, J M (1997). "Increasing incidence of withholding and withdrawal of life support from the critically ill". American Journal of Respiratory and Critical Care Medicine. 155 (1): 15–20. doi:10.1164/ajrccm.155.1.9001282. PMID9001282.
Vincent, Jean-Louis (August 1999). "Forgoing life support in western European intensive care units". Critical Care Medicine. 27 (8): 1626–33. doi:10.1097/00003246-199908000-00042. PMID10470775.