Divers Alert Network: 24 - hour emergency hotline, 919-684-9111 Duke Dive Medicine: Physician-to-physician consultation, 919-684-8111 Undersea and Hyperbaric Medical Society: Scientific and medical information pertaining to undersea and hyperbaric medicine through its bimonthly, peer-reviewed journal, Undersea and Hyperbaric Medicine, and other resources U.S. Navy Diving Manual: Detailed reference guide published by the US Navy detailing diver training and diving operations