Bill Browning heads the trauma unit at San Francisco's busiest emergency room, SF General. With his ex-wife and daughters in London, he immerses himself in his work and lives for rare visits with his children. A rising star at her teaching hospital, UCSF at Mission Bay, Stephanie Lawrence has two young sons, a frustrated stay-at-home husband, and not enough time for any of them. Harvard-educated Wendy Jones is a dedicated trauma doctor at Stanford,...