Biopsies were found to be the most costly tool prescribed in lung cancer diagnosis, according to research presented today at the 2014 Chicago Multidisciplinary Symposium in Thoracic Oncology. The symposium is sponsored by the American Society of Clinical Oncology (ASCO), the American Society for Radiation Oncology (ASTRO), the International Association for the Study of Lung Cancer (IASLC) and The University of Chicago Medicine.