Gap Fill - Blood - Level 2

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   another      challenge      donation      good      laboratory      many      method      older      patients      phase      process      product      rare      reporters      slow      suitable      sustainably      team      technology      way  
Scientists from Bristol University have found a to mass produce blood that is enough for hospital . For years, they could produce blood in a . However, the to do that was very and they could not make a lot of blood. The new means scientists can make an "unlimited supply" of blood. Researcher Dr Jan Frayne said ways of producing red blood cells used stem cells that could only produce a limited amount of blood. She added: "We have [shown] a [workable] way to manufacture red cells."

Professor David Anstee, researcher, told reporters his now needs the to make blood on a large scale – to mass produce it. He said that would be a . He added: "The next of our work is to look at methods of [producing more]." He told that at first, they would produce only rare types of blood. He said these are difficult to find with traditional blood . He said: "The first…use of [our] red cell is likely to be for patients with blood groups, because …red blood cell donations can be difficult to source."

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