Art Levinson, who was on Apple’s board, was chairing the board meeting of his own company, Genentech, when his cell phone rang and Jobs’s name appeared on the screen. As soon as there was a break, Levinson called him back and heard the news of the tumor. He had a background in cancer biology, and his firm made cancer treatment drugs, so he became an advisor. So did Andy Grove of Intel, who had fought and beaten prostate cancer. Jobs called him that Sunday, and he drove.