Fifteen years ago this week, my beautiful daughter Veronica entered the world. She didn't make a sound. As I stretched out my arms to hold her in the delivery room, furrow-browed doctors and nurses instead whisked her away. I shouted after them in panic: "Is she all right? Is she going to be OK?!" Slightly underweight and jaundiced, she remained in the hospital for several days before we got the all-clear. My husband and I counted our blessings. But it wouldn't be the last time we felt the pangs of parental helplessness when it came to her health. Here's the...