http://swissbaync5d7ykaz7dh7v4qjrb4gmen5aj3bogxrcgbb43ij34bjuyd.onion/pdf/Books/Survival/Medicine/sections.htm
Please note that certification policies for nitrox and cave diving are in a state of
flux, and that many traditional recreational diving agencies now offer training in
"technical" diving skills, particularly nitrox diving. RECREATIONAL DIVING CERTIFICATION Handicapped
Scuba Association (HSA) 1104 El Prado San Clemente, CA 92672-4637 Phone & Fax: 714-498-6128 Publication: Squid International Diving Educators
Association (IDEA) PO Box 8427 Jacksonville, FL 32239-8427...