Download the 18th issue (6.7 MB, 36 pages).
* Soft Ceilings Can Be Just As Hard
* Novel Approaches?
* Physiological Responses to O2 & CO2 Levels During CCR Diving
* Walk Before You Run: Technical Diver Training in Unique Environments
* Diving Pioneers & Innovators: A Series of In Depth Interviews (Ernie Brooks)
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