died about 6 months ago at age 50. His obitury is here
http://www.guardian.co.uk/science/2011/sep/08/david-servan-schreiber-obituary
most common form of brain cancer - glioblastoma multiforme (GBM)
http://en.wikipedia.org/wiki/Glioblastoma_multiforme
Thank you and RIP, David SS