Author(s) affiliations:Brooke Falzon1, Cynthia Formosa1, Liberato Camilleri2, and Alfred Gatt1
1Department of Podiatry, Faculty of Health Sciences, University of Malta, Msida, MSD 2080, MALTA.
2Department of Statistics and Operations Research, Faculty of Science, University of Malta, Msida, MSD 2080, MALTA.