Centre for Infectious Disease Research in Zambia, Centre for Infectious Disease Research in Zambia, Centre for Infectious Disease Research in Zambia, Centre for Infectious Disease Research in Zambia, University of Bern - Institute of Social and Preventive Medicine, University Teaching Hospital, Zambia - Department of Radiology, University Teaching Hospital, Zambia - Department of Radiology, University of California, Los Angeles (UCLA) - Department of Medicine, University of Zambia (UNZA) - School of Medicine, Harvard University - Liver Center, Harvard University - Liver Center, Zambian Ministry of Health, University of Bern - Institute of Social and Preventive Medicine, Centre for Infectious Disease Research in Zambia, University of Bern - Institute of Social and Preventive Medicine and Independent