aorta

And because it is from a reconstituted aorta, the doctors do not need to administer anti-rejection drugs, which react to cancer treatments.

由于人工气管是由再造主动脉制成，医生不需要是用抗排斥药物来应对癌症治疗过程中的反应。

AAA is a localized widening and weakening of the abdominal aorta, and primarily affects elderly Caucasian men who smoke, have high blood pressure and high cholesterol levels.

AAA可引起腹主动脉的局部扩张和弱化，其主要影响人群为吸烟的，有高血压和高胆固醇水平的老年高加索人。

They divided the children into groups with high, intermediate and low cotinine levels. Ultrasound was used to measure the thickness of the aorta and of the carotid artery in the neck.

研究人员按照可天宁含量水平将受访人群分成了高、中、低三组，并利用超声波来检查受访者主动脉与颈部动脉的血管壁厚度。