"The essential guide to take care of your family's health when you can't get medical help or answers right away. It's the worst snowstorm you can remember. The ice-covered streets are abandoned. You hear a boom in the distance, and your computer screen goes blank. Darkness. A crash and another bang from inside the house. In the hallway, your husband sits on the floor, soaked in blood. You dial 911, and all you get is a busy signal. Would you know...