Anatomical observation and measurement of the thoracic extra-foramina ligaments 
ZHANG Ru-sen, ZHAO Qing-hao, ZHAO Jian-jun, ZHU Wei-jia, MA Run-xun, LI Qing-chu, LIU Ze-zheng
Chinese Journal of Clinical Anatomy . 2020, (3): 241 -245 .  DOI: 10.13418/j.issn.1001-165x.2020.03.001