Westermark's sign in pulmonary embolism

Chyn-Ni Tang^a, Hung-Yuan Su^b, Sheng-Chuan Hu^{b, c}, Chih-Wei Hsu^{b, c}

^a Department of Family Medicine, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
^b Department of Emergency Medicine, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
^c School of Medicine, Tzu Chi University, Hualien, Taiwan