Ye, Shandong Ye, Xinhua Ye, Yongju Yener Ozturk, Feyza, Sisli Etfal Training and Research Hospital, Department of Endocrinology and Metabolism, Istanbul, Turkey Yi, Cong Yildiz, Ismail Yildiz, Mustafa Yılmaz, Fatma Meriç, Ankara Numune Training and Research Hospital, Department of Biochemistry, Ankara, Turkey Yilmaz, Hamiyet, Department of Endocrinology and Metabolism, Tepecik Education and Research Hospital, Izmir. Yilmaz, Hamiyet Yilmaz, Mahmut Ilker Yilmaz, Özgür, Manisa Merkezefendi Hospital Yilmaz, Yücel Yilmaz Yasar, Hamiyet Yin, Liang Yin, Yanyan Yin, Yi-li Yorguner, Neşe Yu, Chiyuan Yu, Guo Yu, Jianye Yu, Jinwen Yu, Keping Yu, Liu Yu, Mengxi