1. WHO Classification of Tumours Group, Section of Evidence Synthesis and Classification; International Agency for Research on Cancer/World Health Organization (IARC/WHO); Lyon France
2. Department of Pathology, Faculty of Medicine; University of Colombo; Colombo Sri Lanka
3. Cochrane Netherlands; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University; Utrecht Netherlands
4. Communications Group; International Agency for Research on Cancer (IARC), World Health Organization; Lyon France