1 Center for Global Health, Istituto Superiore di Sanità, Rome, Italy.
2 Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy.
3 Infectious Disease Unit, Department of System Medicine, Tor Vergata University and Hospital, Rome, Italy.
4 Economic Evaluation and HTA (EEHTA), CEIS, Faculty of Economics, University of Rome "Tor Vergata" and Institute of Leadership and Management in Health, Kingston Business School, Kingston University, London, UK.
5 Center for Disease Analysis Foundation, Lafayette, Colorado, USA.