About the Authors
Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
Clinical Epidemiology Unit, IRCCS Galeazzi Orthopedic Institute, Milan, Italy
Epidemiological Observatory, ASL Milano, Milan, Italy
University of Milan, Milan, Italy
Department of Oto Specialised Surgical Sciences, University of Florence, Florence, Italy
Clinical and Molecular Epidemiology Unit and Clinical Trials and Evidence-Based Medicine Unit, Department of Hygiene and Epidemiology, School of Medicine, University of Ioannina, Ioannina, Greece
Department of Oncology, Hematology and Respiratory Diseases, University of Modena and Reggio Emilia, Modena, Italy
The authors have declared that no competing interests exist.
Conceived and designed the experiments: LM AP GB. Performed the experiments: AP VP LG LM. Analyzed the data: AP CR GV GS. Wrote the paper: LM AP VP. Critical revision of the intellectual content of the manuscript: LM AP VP CR GV GS LG AL GB.