Key points are not available for this paper at this time.
Yale University School of Medicine, New Haven, Connecticut. Reprint requests: Vincent T. DeVita, Jr., MD, Yale School of medicine, 333 Cedar Street, New Haven, CT 06520. No benefits in any form have or will be received from a commercial party related directly or indirectly to the subject of this article. Received on August 23, 2002; accepted for publication August 28, 2002
Vincent T. DeVita (Sun,) studied this question.