In this March 1, 2013 photo, Dr. Marisa Cruz is photographed at the University of San Francisco VA Medical Center in San Francisco. Cruz is the lead author of a study showing that a 12-

 

              In this March 1, 2013 photo, Dr. Marisa Cruz is photographed at the University of San Francisco VA Medical Center in San Francisco. Cruz is the lead author of a study showing that a 12-
In this March 1, 2013 photo, Dr. Marisa Cruz is photographed at the University of San Francisco VA Medical Center in San Francisco. Cruz is the lead author of a study showing that a 12-item list of health questions can help predict chances for dying within 10 years for patients aged 50 and older. The “mortality index” is designed for doctor-patient discussions about which treatments may be too risky for patients with limited life expectancy. (AP Photo/Jeff Chiu)