MIN-SHAN TSAIWEN-CHU CHIANGWEN-JONE CHENANG YUANPAN-CHYR YANG2020-12-282020-12-2820050735-6757https://scholars.lib.ntu.edu.tw/handle/123456789/533779Occult spontaneous pneumomediastinum [11]letter10.1016/j.ajem.2005.02.025159154332-s2.0-19544363798