1. The promised end-constitutional aspects of physician-assisted suicide;Annas;N Engl J Med,1996
2. Understanding reactions of patient and family;Barnhill,1997
3. Withdrawing intensive life-sustaining treatment-Recommendations for compassionate clinical management;Brody;N Engl J Med,1997
4. Califano J: Physician Assisted Living. America, 1998, pp 10-12
5. Final Gifts;Callanan,1992