Pęksa, Rafał Pękul, Monika Pellegriti, Gabriella Pellegriti, Gabriella Peller, Michał Peng, Hao Peng, Hongling Peng, Lina Peng, Yan Peng, Yang Pera, Giorgia, Endocrine Unit, Department of Internal Medicine, University of Genoa Peregud-Pogorzelski, J. Perez, Camila Luhm Silva, Endocrinology Division, Hospital de Clinicas, Federal University of Parana (SEMPR) Perros, Petros Pertyński, Tomasz Pešić, Milica Pešić, Milica M. Pesz, Karolina Petakov, Milan Petakov, Milan Petriczko, E. Petriczko, Elżbieta Petriczko, Elżbieta, Clinics of Paediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, Szczecin, Poland Petriczko, Elżbieta (Poland) Petrović, Nebojša, Department of Nuclear Medicine, Clinical Center of Serbia, Belgrade, Serbia, University of Belgrade, School of Medicine, Belgrade, Serbia