Aug 3, 2012 7:47 PM
TUCSON - Today on News 4 Tucson at 4 p.m., Dr. Lori Mackstaller from the Sarver Heart Center stopped by, offering her perspective on today's top medical stories.
She discussed the results of a recent sleep deprivation study, another study on the effectiveness of vaccines, and the rise in reported cases of celiac disease.
Check out the video above to watch Dr. Mackstaller's discussion with Allison.
7 hours ago