Meanwhile, in a separate study published online today in Science, an overlapping team at Genentech led by biologist Frederic
de Sauvage describes the mechanism by which the man's brain tumor developed resistance.
43) Ritsma, L., Ellenbroek, S.I., Zomer, A., Snippert, H.J.,
de Sauvage, F.J., Simons, B.D., Clevers, H., van Rheenen, J..