1. Melaka-Manipal Medical College; Department of Community Medicine; Jalan Batu Hampar Bukit Baru Melaka Malaysia 75150
2. NHS trust; Department of Medicine, University Hospitals of Leicester; Leicester Royal Infirmary Leicester UK LE1 5WW
3. University of Verona-AOUI Verona; Department of Medicine; Polilinico GB Rossi Verona Italy 37134