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)

Associated Press
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)
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)
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