In Gerald Grant\u2019s line of work, there isn\u2019t such a thing as an \u201caverage\u201d patient. As a chief of pediatric neurosurgery at Stanford University Medical Center, the children that come into his operating room are unique, each requiring a complex surgical procedure tailored to the architecture of a young brain. But that doesn\u2019t mean he can\u2019t learn from what other people have done.