Clinical characteristics and etiological analysis of lung nodules in 98 children 
 LI Jiao, YOU Jingyi, PENG Lu, HU Jing, GAO Ya, SHU Chang
临床儿科杂志 . 2017, (8): 585 .  DOI: 10.3969/j.issn.1000-3606.2017.08.006