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But its core business is still cashmere processing and production, although the past few years have been challenging as international brands moved into China.
But compared to the nation's overall senior population of 250 million, the shortage of such universities is prominent.
But despite the progress, Tian said, the obstacles persist. The lack of internet coverage has slowed the expansion, and the increasingly elderly rural community - mostly left-behind seniors whose children work in cities - and the accompanying knowledge gap have posed a challenge to the use of the high-tech medical services.
But in March those restrictions were dropped, allowing researchers to seek individual permits for research projects.
But oral fluid tests have their own problems. While there are HIV antibodies in saliva, they just aren't that many present, especially early on.
来源：资阳报