How many male comic-book fans will go see their doctor, or otherwise learn about prostate cancer because they saw a cancer-awarness banner on the cover of their latest issue of “Iron Man” or Captain America”? Whether it’s thousands, hundreds or just one doesn’t matter too much to Joe Ferrara. It’s not about a head count. It’s about bringing prostate cancer up to breast cancer in the level of awareness in the general public. It’s about a simple equation: Awareness equals early