(CNN) -- John Cossman's friends call him cancer's iron man. He's had more than 90 radiation treatments and 200 chemo treatments since being diagnosed with head and neck cancer eight years ago.
The cancer has spread to his right lung, his right arm and his brain. Four years ago, he ran out of treatment options -- every available form of chemo had been used.
Cancer 'iron man' puts hope in drug trials - CNN.com