美国风湿病学会的问题是要求进行提议，然后等研究小组的回应，需要一个时间过程。
The ACR issues requests for proposals and then waits for research groups to respond, a process that takes time.
根据年美国风湿病学会2008年年会上发表的研究结果，它在与其它治疗合用时也可以降低缺血性溃疡的发病率。
It also decreased the incidence of ischemic ulcers when used with other treatments, according to research presented here at the American College of Rheumatology 2008 Annual Scientific Meeting.
在波士顿举行的美国风湿病学会科学年会上公布了这一研究结果。
The findings were presented at the American College of Rheumatology's Annual Scientific Meeting in Boston.
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