Pan J.-F.PAN-CHYR YANGKWEN-TAY LUH2021-05-262021-05-2619950929-6441https://scholars.lib.ntu.edu.tw/handle/123456789/562707Obstructive pneumonitis mimicking pneumonia with parapneumonic effusion: Usefulness of chest ultrasound in differentiationjournal article2-s2.0-0028874942