[1
]Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul
National University College of Medicine, Seongnam, Korea.
[2
]Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital,
Hallym University College of Medicine, Seoul, Korea.
[3
]Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University School
of Medicine, Seoul, Korea.
[4
]Department of Internal Medicine, College of Medicine, The Catholic University of Korea,
Seoul, Korea.
[5
]Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School
of Medicine, Seoul, Korea.
[6
]Department of Internal Medicine, National Health Insurance Service Ilsan Hospital,
Goyang, Korea.
[7
]Department of Internal Medicine, Asan Medical Center, University of Ulsan College
of Medicine, Seoul, Korea.
[8
]Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Kyung
Hee University School of Medicine, Seoul, Korea.
[9
]Department of Internal Medicine, Severance Hospital, Yonsei University College of
Medicine, Seoul, Korea.
[10
]Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea.
[11
]Diabetes Center, Endocrinology and Metabolism, Korea University Guro Hospital, Korea
University College of Medicine, Seoul, Korea.
[12
]Department of Internal Medicine, Pusan National University Hospital, Pusan National
University School of Medicine, Busan, Korea.
[13
]Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital,
Hallym University College of Medicine, Seoul, Korea.
[14
]Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon,
Korea.
[15
]Department of Internal Medicine, Inje University Busan Paik Hospital, Inje University
College of Medicine, Busan, Korea.
[16
]Department of Internal Medicine, Kyungpook National University Hospital, School of
Medicine, Kyungpook National University, Daegu, Korea.
[17
]Department of Internal Medicine, Chonbuk National University Hospital, Chonbuk National
University Medical School, Jeonju, Korea.
[18
]Department of Endocrinology and Metabolism, Kangbuk Samsung Hospital, Sungkyunkwan
University School of Medicine, Seoul, Korea.
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