substernal造句

1、Objective To discuss the diagnosis and operation of substernal goiter.
目的探讨胸骨后甲状腺肿的诊断和手术方式。

2、Objective To discuss the clinical diagnosis and treatment of substernal benign thyroid tumor.
目的：探讨胸骨后良性甲状腺肿瘤的临床诊断和治疗方法。

3、To study the diagnosis and treatment of substernal goiter.
目的探讨胸骨后甲状腺肿的诊断和治疗。