"The number one predictor of how a child will do in an operation is not based on where the tumor is or how big it is. The number one predictor is how experienced the neurosurgeon is in doing that operation in children." <br>Mark Kieran, MD, PhD<ref>URL: [http://childrenshospital.org/az/Site962/mainpageS962P0.html http://childrenshospital.org/az/Site962/mainpageS962P0.html]. Accessed on: 2 January 2012.</ref>