By Sunita Puri, Los Angeles Times (TNS) When Alex Trebek, the longtime “Jeopardy” host, revealed to the world that he’d been diagnosed with Stage 4 pancreatic cancer this spring, his statement echoed the words of many patients I’ve treated. “I’m going to fight this,” Trebek promised. “I plan to beat the low survival statistics for this disease.” Though I mourned his diagnosis, I also winced at his