Patents VTS1 US 4923248, VTS2 US 5002336, VTS3 US 5117638, SVTS1 US 6085369, SVTS2 US 6263530, VTC2 US 7272936. Foreigns issued and pending. Slideshow VTC2_Slide_Show.ppt Papers SAE VTS 931111 SAE SVTS 980661 Acclimatization to Heat in Humans