RT Journal Article SR Electronic T1 High-Altitude Medicine and Pathology JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 616 OP 616 DO 10.1136/jcp.49.7.616-c VO 49 IS 7 A1 D J Collier YR 1996 UL http://jcp.bmj.com/content/49/7/616.3.abstract AB