Chicago, IL - ASCO 2007 - Sandra J. Horning, MD, Immediate Past President of ASCO, speaks at the Oncologist As a Patient Education Session, held on Friday, June 1, 2007, during the American Society of Clinical Oncology's (ASCO) 43rd Annual Meeting. The meeting attracts more than 25,000 oncologists, researchers, and cancer care professionals from more than 100 countries. Date: Friday June 1, 2007. Credit: Photo Courtesy © ASCO/Scott Morgan 2007. ASCO Contact: Tiffany Reynolds/Communications Dept.; 703-519-1423. Technical Questions: email@example.com; 612-226-5154.