Department of Ultrasound Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China;
Department of Endocrinology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China;
early-onset type 2 diabetes mellitus; diabetic microvascular complication; diabetic nephropathy; diabetic retinopathy; diabetic peripheral neuropathy;