Dr. Chamberlain serves or has served on a number of advisory boards (Schering-Plough, Genentech/Roche, ENZON, Merck Serono, Lilly/Immclone, Pfizer, Merck,Sigma-Tau, Plexxicon, Mundipharma), speakers bureau’s (Schering-Plough, Genentech, Exilexis, Myriad, ENZON, Mundipharma), editorial boards (Neuro-Oncology, CNS Oncology, Cancer, CNS Drugs, Journal of Neuro-Oncology) and national professional organizations (Society of Neuro-Oncology, American Society of Clinical Oncologists, American Academy of Neurology, Radiation Treatment Oncology Group).