Demirkol, Mehmet Onur Demirpence, Mustafa, Department of Endocrinology and Metabolism, Tepecik Education and Research Hospital, Izmir, Demirpence, Mustafa Demissie, Marek Denes, Judit Denew, Piotr, Department of Endocrinology, Medical University, Lublin, Poland Deng, Lianxiang Deng, Lihua Deng, Qin Deng, Xian Deng, Zhi-yong Deptała, Andrzej Deptała, Andrzej Deptała, Andrzej, Department of Gastroenterology, Pomeranian Medical University, Szczecin, Poland Dera-Szymanowska, Anna Derejczyk, Małgorzata Derkacz, Marek Derkacz, Marek Derkacz, Marek (Poland) DeSantis, Dave Deutz Gómez-Condori, Diana Carolina Deyneli, Oğuzhan, Marmara University, School of Medicine, Section of Endocrinology and Metabolism, Istanbul, Turkey Deyneli, Oğuzhan Deyneli, Oğuzhan (Türkiye) Di Benedetto, Guenda