Westermark signNils Johan Hugo Westermark (1892 - 1980) was a Swedish radiologist. Westermark sign (1938) of relative oligemia on CXR in pulmonary embolismGary ZhangMarch 15, 2020
Nils WestermarkNils Johan Hugo Westermark (1892 - 1980) was a Swedish radiologist. Westermark sign (1938) of relative oligemia on CXR in pulmonary embolismGary ZhangMarch 4, 2020