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A not-so-hard graft 一个不那么难的移植 Transplantable blood vessels can now be grown asdesired 可移植的血管现可随意培育 The old-fashioned way 古老的方式 ANOTHER advance in the emerging technology of regenerative medicine has just beenannounced. 新兴再生医学技术的又一项进展刚刚被公布。 It should soon be possible to make blood vessels that can be stored and used off the shelf forsurgery that requires arteries or veins to be bypassed. 该项技术应该不久就可能制造血管，这种血管可以储存，需要进行绕过动静脉的外科手术时可以现货供应。 The vessels, prototypes of which are described this week in a paper in Science TranslationalMedicine, are made by Humacyte, a small firm based in Durham, North Carolina, that wasfounded by Shannon Dahl, the paper s principal author, and two colleagues. 本周《科学转化医学》上的一篇论文描述了这种血管的原型，它是由北卡罗来纳州达勒姆的一家小公司Humacyte制造的，而公司的创立者为该论文的主要作者夏伦?达尔和其两位同事。 The recipe Dr Dahl and her colleagues concoctedbegins with smooth-muscle cells. | 
