The Home Doctor - Practical Medicine for Every Household - is a 304 page doctor written and approved guide on how to manage most health situations when help is not on the way.
If you want to see what happens when things go south, all you have to do is look at Venezuela: no electricity, no running water, no law, no antibiotics, no painkillers, no anesthetics, no insulin or other important things.
But if you want to find out how you can still manage in a situation like this, you must also look to Venezuela and learn the ingenious ways they developed to cope.
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