When did Grey's Anatomy Season 7 Episode 13 air?
Grey's Anatomy Season 7 Episode 13 aired on February 3, 2011 at 9 PM ET.


Derek breaks ground on his Alzheimer's clinical trial and Meredith can't help but feel left out; Bailey's attempt to take the hospital into the age of new media with live tweets from the OR does not go over well with the Chief; and Callie, Mark and Arizona must learn to navigate through the pregnancy together, which starts off with Callie driving her new obstetrician crazy.
Direct answers for episode-level questions and details.
Grey's Anatomy Season 7 Episode 13 aired on February 3, 2011 at 9 PM ET.
This episode runs for approximately 43 minutes.
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