Authors: Melissa Holdren,
Orit Schieir,
Susan J. Bartlett,
Louis Bessette,
Gilles Boire,
Glen Hazlewood,
Carol A Hitchon,
Edward Keystone,
Diane Tin,
Carter Thorne,
Vivian P. Bykerk,
Janet E. Pope,
Canadian Early Arthritis Cohort (CATCH) investigators
