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Five most common ...

Saúde e a Pandemia

Expedition Big Animals

IANTD Aquanaut

D. Republic Caves

IANTD Photogrammetry

O2 Sensors Fundamentals

Project J2 Cave

The O'Dive Doppler

International Association of Nitrox Divers, IAND, was formed in 1985 in response to the needs of the diving public. Up until that time, mixed gas diving and the use of decompression gasses was limited, in a formal way, to military and commercial divers.
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