1. Department of Virology, Erasmus Medical Center, Dr. Molewaterplein 50, 3015 GE, Rotterdam, The Netherlands
2. Department of Biological Analysis, Pasteur Institute Ho Chi Minh City, 167 Pasteur, Ho Chi Minh City, Vietnam
3. Center of Excellence in Viral Hepatitis Research, Department of Pediatrics, Chulalongkorn Hospital, Rama IV, Bangkok 10330, Thailand