1. Clinical Hospital Centre Zagreb; Clinical Institute of Laboratory Diagnosis; Kispaticeva 12 Zagreb Croatia 10000
2. St Joseph's Hospital; 25 Charlton Ave East - Suite 501 Hamilton Ontario Canada L8N 1Y2
3. Faculty of Medicine, University of Ottawa; Department of Medicine; Ottawa Ontario Canada K1H 8M5
4. University of Ottawa; Department of Epidemiology and Community Medicine; Room H1281 40 Ruskin Street Ottawa Ontario Canada K1Y 4W7
5. University of Split School of Medicine; Department of Research in Biomedicine and Health; Soltanska 2 Split Croatia 21000