Age-dependent D-dimer Cut-off Value Reduced Unnecessary Ultrasound Scans for Chinese Older Patients Suspected with Deep Vein Thrombosis

Shunxin Zhang, MD, Cui Liu, MD, Xin Zhao, MD, Danfei Song, MD, Junlai Li, MD

Advanced Ultrasound in Diagnosis and Therapy . 2019, (2): 41 -46 . DOI: 10.37015/AUDT.2019.190808