A stranger, a gift,Six years ago, Ellyn Cohen of Holliston was dying of a rare lung disease. Hilary Greene of Centerville donated part of one of her lungs to save Cohen's life. At the time, the two were total strangers. It was an unusual act of kindness. ''I would have died without her generosity,'' Cohen said.
and a marathon miracle
Hilary Greene of Centerville (left) and Ellyn Cohen of Holliston share a bond.
(Essdras M Suarez / Globe Staff Photo)