1. From the University of Texas M.D. Anderson Cancer Center, Houston, TX; University of California, San Francisco, San Francisco, CA; University of Alabama, Birmingham, AL; Duke University, Durham, NC; University of Cincinnati, Cincinnati, OH; Emory Clinic, Atlanta, GA; Johns Hopkins University, Baltimore, MD; Schering-Plough Pharmaceuticals, Kenilworth, NJ; Hôpital de la Pitié-Salpetrière, Paris, France; and Royal Marsden Hospital, Surrey, United Kingdom.