1. School of Dentistry, University of Washington; Oral Health Sciences; 1959 Pacific Street NE Seattle WA USA 98195
2. University of Malaya; Centre for Occupational and Environmental Health; Pantai Valley Kuala Lumpur Malaysia 50603
3. University of Newcastle; Faculty of Medicine and Health Sciences; Ourimbah NSW Australia 2287
4. Faculty Of Dentistry, Melaka-Manipal Medical College (Manipal Academy of Higher Education); Department of Oral Pathology; Jalan Batu Hampar, Bukit Baru Melaka Malaysia 75150
5. Melaka-Manipal Medical College (Manipal Academy of Higher Education); Department of Community Medicine; Jalan Batu Hampar Bukit Baru Melaka Malaysia 75150
6. Melaka Manipal Medical College; Department of Obstetrics and Gynecology; Bukit Baru, Jalan Batu Hampar Melaka Malaysia 75150