This book & the others on their site are often distributed to places where there isn't regular medical care. Since I talked about having a survival library, this is a great place to start. I printed the doctor book (I printed it both sides, & 2 pages per side to make it thinner). Now it's in my survival library for whenever I need it!
I got paper free or very cheap at back to school sales, & I have very very cheap printer ink. So it's an almost free resource!