1 Department of Endocrinology, Hospital Universitario de la Princesa, Instituto de Investigación de la Princesa, Universidad Autónoma de Madrid, Madrid, Spain. monica.marazuela@salud.madrid.org.
2 Division of Endocrinology IRCCS San Raffaele Hospital, Institute of Endocrine and Metabolic Sciences Vita Salute San Raffaele University, Milan, Italy.
3 Endocrinology and Nutrition Service, Department of Medicine, Germans Trias i Pujol Research Institute and Hospital, Universitat Autònoma de Barcelona, Badalona, Spain.