If you have a first aid kit, do you know how to use what's inside, beyond the bandaids? Even if you've been to a first aid class in the last few years—which you likely haven't, unless you've been working in child care, or as a lifeguard, or in another specialized job—you might not immediately remember what to do when you're faced with a real-life emergency. Can better-designed first aid kits help?

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