Detection and analysis of the quality control for 78 CT machines in Nanyang City
LI Shizheng, CHU Caifang, LI Qingxin, PENG Yang, YAN Yijie
中国辐射卫生 . 2018, (5): 476 -478 .  DOI: 10.13491/j.issn.1004-714x.2018.05.015