1. Fundação Ariel Glaser contra o SIDA Pediátrico, Maputo, Mozambique
2. Health System and Policy Cluster, Instituto Nacional de Saúde, Maputo, Mozambique
3. National Centre for Healthcare Research and Pharmacoepidemiology, University of Milano-Bicocca, Milan, Italy
4. Laboratory of Healthcare Research and Pharmacoepidemiology, Unit of Biostatistics, Epidemiology and Public Health, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
5. Bambino Gesù Children's Hospital IRCCS, Department of Pediatrics, Research Unit of Clinical Immunology and Vaccinology, Rome, Italy
6. Department of Systems Medicine, University of Rome “Tor Vergata”, Rome, Italy
7. Department of Microbiology and Immunology, Miami Center for AIDS Research, University of Miami Miller School of Medicine, Miami, FL, USA