[1] Univ British Columbia, Dept Pediat, Div Cardiol, Vancouver, BC V6H 3V4, Canada
[2] Univ Montreal, Ctr Hosp Univ St Justine, Serv Nephrol, Montreal, PQ, Canada
[3] Univ British Columbia, Div Nephrol, Dept Pediat, Vancouver, BC V6H 3V4, Canada
[4] Univ Ottawa, Dept Pediat, Div Nephrol, Childrens Hosp Eastern Ontario, Ottawa, ON K1N 6N5, Canada
[5] Univ Quebec Trois Rivieres, Trois Rivieres, PQ GA9 5H7, Canada
[6] Univ Calgary, Div Gen Internal Med, Calgary, AB, Canada
[7] Univ Alberta, Dept Med, Edmonton, AB, Canada
[8] Univ Calgary, Dept Med, Calgary, AB, Canada
[9] Univ Calgary, Dept Community Hlth, Calgary, AB, Canada
[10] Univ Calgary, Dept Cardiac Sci, Calgary, AB, Canada
[11] Univ Montreal, Ctr Hosp Univ St Justine, Serv Cardiol, Montreal, PQ, Canada