[1] Univ Alberta, Edmonton, AB, Canada
[2] Univ Western Ontario, London, ON, Canada
[3] Univ Manitoba, Winnipeg, MB, Canada
[4] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada
[5] Univ Calgary, Calgary, AB, Canada
[6] Bar Ilan Univ, Ramat Gan, Israel
[7] Human Genome Sci Inc, Rockville, MD USA
[8] Duke Clin Res Inst, Durham, NC USA