PT - JOURNAL ARTICLE AU - Xue, Xuhong AU - Zhao, Sheng TI - Four thoracic cavity compartments caused by bilateral bifid intrathoracic rib AID - 10.1136/thoraxjnl-2020-214537 DP - 2020 Jun 01 TA - Thorax PG - 528--529 VI - 75 IP - 6 4099 - http://thorax.bmj.com/content/75/6/528.short 4100 - http://thorax.bmj.com/content/75/6/528.full SO - Thorax2020 Jun 01; 75