Dudek, Marta Dudek, Piotr Dudzińska, Marta, Department of Endocrinology, Medical University, Lublin, Poland; Chair of Internal Medicine and Department of Internal Medicine in Nursing, Medical University in Lublin, Poland Dudzińska, Marta Dudzińska, Marta, Chair of Internal Medicine and Department of Internal Medicine in Nursing, Medical University of Lublin, Poland Dul, Lechosław, Department of Biostatistics. Medical University of Silesia, Katowice, Poland Dulkadir, Zeki Duma, Dariusz Duma, Krzysztof Duman, Gülhan Dunajska, Katarzyna Dundjerovic, Dusko Duraisamy, Arul Joseph, Endocrinology & Metabolism Division, Defence Institute of Physiology and Allied Sciences, Lucknow Road, Timarpur, Delhi — 110054, India Duran, Cevdet Durczynski, Adam Durczyński, Adam Durma, Adam Daniel Durma, Anna Celina Dusceac, Roxana Dutkowska, Anna Dutta, Deep, Department of Endocrinology Post Graduate Institute of Medical Education&Research (PGIMER) and Dr. Ram ManoharLohia (RML) Hospital, New Delhi 110001, India Dutta, Deep, Department of Endocrinology, Postgraduate Institute of Medical Education & Research (PGIMER) & Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India Dutta, Deep, Dr Deep Dutta Consultant & Head, Department of Endocrinology Diabetology & Metabolic Disorders, Venkateshwar Hospitals, New Delhi, India Assistant Professor, Department of Endocrinology, Endocrine Clinic, Nursing Home Annex, Post Graduate Institute of Medical Education & Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, Baba Kharak Singh Marg, New Delhi-110001; Phone: +919911544096; e-mail: deepdutta2000@yahoo.com Dutta, Deep, Department of Endocrinology Diabetology and Metabolic Disorders, Venkateshwar Hospitals, Dwarka, New Delhi Duława, Jan