RT Journal Article SR Electronic T1 The High Altitude Medicine Handbook JF Journal of Accident & Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 240 OP 240 DO 10.1136/emj.16.3.240-a VO 16 IS 3 A1 Villar, Richard N YR 1999 UL http://emj.bmj.com/content/16/3/240.2.abstract AB