Authors’ response (August 21, 2017) to the letter to the Editor concerning the paper “Mortality for chronic-degenerative diseases in Tuscany: Ecological study comparing neighboring areas with substantial difference in environmental pollution”
National Institutes of Health, Phoenix, Arizona, USA (Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases)
University of Pisa, Pisa, Italy (Department of Endocrinology and Metabolism)