Chicago, IL - ASCO 2007 - Gabriel N. Hortobagyi, MD, FACP, President of the American Society of Clinical Oncology (ASCO), speaks during the Opening Press Briefing, Friday June 1, 2007 at ASCO's 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/Todd Buchanan 2007. ASCO Contact: Tiffany Reynolds/Communications Dept.; 703-519-1423. Technical Questions: firstname.lastname@example.org; 612-226-5154.