WMA (World Medical Association). 1964. Declaration of Helsinki: Ethical Principles for Medical Research Involving Human Subjects. Adopted June 1964, Helsinki, Finland, and most recently amended October 2000. [Online]. Available: http://www.wma.net/e/policy/17-c_e.html [accessed December 17, 2001].

Wolfe J, Grier HE, Klar N, Levin SB, Ellenbogen JM, Salem-Schatz S, Emanuel EJ, Weeks JC. 2000a. Symptoms and suffering at the end of life in children with cancer. New England Journal of Medicine 342:326–333.

Wolfe J, Klar N, Grier HE, Duncan J, Salem-Schatz S, Emanuel EJ, Weeks JC. 2000b. Understanding of prognosis among parents of children who died of cancer: Impact on treatment goals and integration of palliative care. Journal of the American Medical Association 284(19):2469–2475.

Wolfe J. 2001 (June 11). Statement and discussion with the IOM committee on improving palliative and end-of-life care for children and their families, Open Meeting. Washington, DC.

Wood AJ. 2001. Racial differences in the response to drugs—pointers to genetic differences. New England Journal of Medicine 344(18):1393–1396.

Woolf SH, Grol R, Hutchinson A, Eccles M, Grimshaw J. 1999. Potential benefits, limitations, and harms of clinical guidelines. British Medical Journal 318:527–530.

Wooten B. 2001. Written, unpublished responses to survey of bereaved parents developed and distributed by J. Hilden and H. Janes-Hodder for Children’s Oncology Group Parent Advocates Group. Used with permission.

Worden JW, Monahan JR. 2001. Caring for Bereaved Parents. In: Armstrong-Daley A, Zarbock S, eds. Hospice Care for Children, 2nd ed. New York: Oxford University Press. Pp. 137–156.

Wordsworth, W. 1798. We Are Seven. The Complete Poetical Works. London: Macmillan and Co., 1888. [Online]. Available: www.bartleby.com/145 [accessed July 20, 2001].

Wright JL, Klein BL. 2001. Regionalized pediatric trauma systems. Clinical Pediatric Emergency Medicine 2:3–12.

Wyeth-Ayerst Laboratories. 1999. Prescription Drug Benefit Cost and Plan Design Survey Report. Albuquerque, NM: Wellman Publishing, Inc.

Yaster M, Krane E, Kaplan R, Cote C, Lappe D. 1997. Pediatric Pain Management and Sedation Handbook. St. Louis: Mosby.

Young KD, Seidel JS. 1999. Pediatric cardiopulmonary resuscitation: A collective review. Annals of Emergency Medicine 33:195–205.

Yudowsky BK, Tang SS, Siston AM. 2000 (October). Pediatrician Participation in Medicaid: Survey of Fellows of the American Academy of Pediatrics. [Online]. Available: http://www.aap.org/statelegislation/med-schip/Wholedpc.pdf [accessed July 12, 2001].

Zacharias M. 1998. Pain relief in children: Doing the simple things better.British Medical Journal 316:1552–1560.

Zeltzer L. 1980. The adolescent with cancer. In: Kellerman J, ed. Psychological Aspects of Childhood Cancer. Springfield, IL: Charles C. Thomas.

Zucker MB, Zucker HD, eds. 1997. Medical Futility and the Evaluation of Life-Sustaining Interventions. Oxford: Cambridge University Press.