The human papillomavirus vaccine appears to be safe in a review of more than 30,000 prelicensure and 12.4 million postlicensure doses of the vaccine; vasovagal syncope is a possible adverse event. Medscape Medical News
The absolute value of the 6-minute walk distance test was a simple, accurate measure of exercise intolerance and predictor of mortality in patients with chronic obstructive pulmonary disease. Reuters Health Information
Dr. Keeffe discusses treatment issues in hepatitis B; Drs. Henkel and Flamm review the evaluation of the HBV-infected patient; and Dr. Reau reviews the literature on the treatment of hepatitis B. Medscape Gastroenterology
