Xiaobaitu, radiology, pjiang以及各位高人:
Filed I-140 in July, 2007 at TSC。
上星期收到Ref，非常担心。现将其主要内容转录如下，请各位高人指点。
“Please describe specifically all of this petitioner's exact prior achievements and how these have influenced his field. Have experts in this field recognized the petitioner's work? Submit documentary evidence such as letters from experts attesting to the beneficiary's influence in his field”
为了回答“Please describe specifically all of this petitioner's exact prior achievements and how these have influenced his field”， 我将写一封回信具体讲述我的成绩及其影响. 影响如何描述？除了citation还有什么？
为了回答“Submit documentary evidence such as letters from experts attesting to the beneficiary's influence in his field”， 我将请同领域的专家写证明信。这时的证明信与以前的推荐信是否一样？是否可以找同样的人写？多少封证明信比较合适？
我不知如何回答“Have experts in this field recognized the petitioner's work?” 这个问题可以用文章的citation回答吗，还是用证明信回答？
敬请各位高人帮助！ 感激之至！
壹仁