It has been out for a while but I just came across it. Has some interesting information about free diving and physiology for folks that are into breathhold diving.
You can download the pdf file at:
http://www.shark-freediving.com/blog...AN_BH_2006.pdf
BREATH-HOLD DIVING
Workshop Proceedings
June 20-21, 2006
Jointly Sponsored by the
Undersea and Hyperbaric Medical Society
and
Divers Alert Network
Peter Lindholm, MD, PhD
Neal W. Pollock, PhD
Claes EG Lundgren, MD, PhD