Link to the Show / Show Notes This summary covers the issue of October 8, 2009. Featured are articles on defibrillator implantation early after myocardial infarction, microRNA expression, survival, and response to interferon in liver cancer, doxycycline for Mansonella perstans infection, osteoporosis associated with neutralizing autoantibodies against osteoprotegerin, accuracy of conflict-of-interest statements, and gray-matter injury in multiple sclerosis; a review article on DNA damage, aging, and cancer; a case report of a man with abdominal distention and shock; and Perspective articles on the cost of health care.