aDepartment of Nephrology, Hédi Chaker University Hospital, Sfax, Tunisia; Research Laboratory of Renal Pathology LR19ES11, Faculty of Medicine, University of Sfax, Sfax, Tunisia

bNéphrologie et dialyse, Centre Hospitalier Le Mans, Le Mans, France

cDepartamento de Nefrología y Metabolismo Mineral Instituto Nacional de Ciencias Médicas y Nutrición ‘Salvador Zubirán’ (INCMNSZ), Mexico City, Mexico

dGdP Green Nephrology of the Italian Society of Nephrology, Italy

Correspondence to Giorgina Barbara Piccoli, Néphrologie et dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France. E-mail: [email protected]