1. Medical Oncology; Sunnybrook Odette Cancer Center; Toronto Canada
2. Unit of Oral Surgery and Medicine; University of Dundee; Dundee UK
3. Department of Public Health; NHS Fife; Fife UK
4. Glasgow Dental School; University of Glasgow; Glasgow UK
5. Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health; The University of Manchester; Manchester UK
6. Division of Oral Health Sciences; School of Dentistry, University of Dundee; Dundee UK
7. Cochrane Oral Health; Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester; Manchester UK
8. Sunnybrook Odette Cancer Centre; Sunnybrook Health Sciences Centre; Toronto Canada