[1] CHEDOKE MCMASTER HOSP, DEPT PATHOL, HAMILTON, ONTARIO, CANADA
[2] CHEDOKE MCMASTER HOSP, DEPT CLIN EPIDEMIOL & BIOSTAT, HAMILTON, ONTARIO, CANADA
[3] ST JOSEPHS HOSP, DEPT MED, HAMILTON L8N 1Y4, ONTARIO, CANADA
[4] ST JOSEPHS HOSP, DEPT PATHOL, HAMILTON L8N 1Y4, ONTARIO, CANADA
[5] ST JOSEPHS HOSP, DEPT CLIN EPIDEMIOL & BIOSTAT, HAMILTON L8N 1Y4, ONTARIO, CANADA
[6] HAMILTON GEN HOSP, DEPT MED, HAMILTON L8L 2X2, ONTARIO, CANADA
[7] HAMILTON GEN HOSP, DEPT PATHOL, HAMILTON L8L 2X2, ONTARIO, CANADA
[8] HAMILTON GEN HOSP, DEPT CLIN EPIDEMIOL & BIOSTAT, HAMILTON L8L 2X2, ONTARIO, CANADA