1. Department of Clinical Molecular Informative Medicine
Nagoya City University Graduate School of Medical Sciences
Nagoya 467-8601, Japan
2. Hepatitis Virus Diversity Research Programme
Department of Internal Medicine
University of the Witwatersrand
2193 Johannesburg, South Africa
3. Virus Evolution Group
Centre for Infectious Disease
University of Edinburgh Summerhall
Edinburgh EH9 1Q, United Kingdom