I'm not sure; maybe Dr. Wall is going to try to answer.
On November 2nd, 2010. See this statement in context.
On November 2nd, 2010. See this statement in context.
November 2nd, 2010 / 11:55 a.m.
Chief of Research, Hospital for Sick Children
I'm not sure; maybe Dr. Wall is going to try to answer.
See context to find out what was said next.