1. Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria.
2. Departamento Académico de Clínicas Médicas, Facultad de Medicina “Alberto Hurtado,” Universidad Peruana Cayetano Heredia, Lima, Perú.
3. Department of Anesthesiology, University of Michigan, Ann Arbor, Michigan, USA.
4. Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan, USA.