TY - JOUR T1 - Proceedings of the Fourth International Congress on Hyperbaric Medicine JF - British Journal of Industrial Medicine JO - Br J Ind Med SP - 232 LP - 232 DO - 10.1136/oem.29.2.232 VL - 29 IS - 2 AU - R. I. McCallum Y1 - 1972/04/01 UR - http://oem.bmj.com/content/29/2/232.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -