| Affiliation: | 1. Arrhythmia Unit, Cardiology Service, Hospital Universitari Vall d''Hebron, Barcelona, Spain;2. Grown-up Congenital Heart Disease Unit, Cardiology Service, Hospital Universitari Vall d''Hebron, Barcelona, Spain;3. Cardiovascular Epidemiology Unit, Cardiology Service, Hospital Universitari Vall d''Hebron, Barcelona, Spain;4. Cardiology Service, Hospital Universitari Vall d''Hebron, Barcelona, Spain;1. Canadian Food Inspection Agency, Lethbridge Laboratory, Township Rd 9-1, Lethbridge, Alberta T1J 3Z4, Canada;2. Canadian Food Inspection Agency, Greater Toronto Area Laboratory, 2301 Midland Ave., Scarborough, Ontario M1P 4R7, Canada |
