RT Journal Article SR Electronic T1 Comings and Goings JF Journal of Investigative Medicine JO J Investig Med FD BMJ Publishing Group Ltd SP 392 OP 395 DO 10.2310/6650.2005.53802 VO 53 IS 8 YR 2005 UL http://hw-f5-jim.highwire.org/content/53/8/392.abstract AB