1. Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
2. Meta-Research Innovation Center at Stanford, Stanford University, Stanford, California
3. Department of Medicine, Stanford University, Stanford, California
4. Department of Epidemiology and Population Health, Stanford University, Stanford, California
5. Department of Biomedical Data Science, Stanford University, Stanford, California
6. Department of Statistics, Stanford University, Stanford, California