RT Journal Article SR Electronic T1 Sex, SARS, and the Holy Grail JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 400 OP 401 DO 10.1136/emj.20.5.400 VO 20 IS 5 A1 M J Schull YR 2003 UL http://emj.bmj.com/content/20/5/400.abstract AB