He will run nearly 6 marathons in less than 2 days .
On August 12 , 2011 Eric Gelber will set out on another adventure , pushing the limits of human spirit to raise awareness and funds to cure cancer .
Eric Gelber will run nearly 6 marathons in less than 2 days .
On August 12 , 2011 Eric Gelber will set out on another adventure , pushing the limits of human spirit to raise awareness and funds to cure cancer .