Link to the Show / Show Notes This summary covers the issue of December 14, 2006. Featured are articles on the prevention of antigenically drifted influenza by inactivated and live attenuated vaccines, the effectiveness of school-based influenza vaccination, colonoscopic withdrawal times and adenoma detection during screening colonoscopy, paclitaxel-carboplatin alone or with bevacizumab for non-small-cell lung cancer; review articles on adenomatous polyps of the colon and on acromegaly; a case report of a boy with headache and abdominal pain; and Perspective articles on HIV injustice in Libya and on the eradication of polio.