急求关于RA Sharp及van der Heijde分级的文章

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请问哪位老师知道关于RA骨质破坏SHARP和van der Heijde评分的文献或者方法，急用，谢谢！
最好具体一点的做法，呵呵！

或者哪位能否帮我找一下这几篇的全文，我查不到：
Sharp Scoring System:
Modified Sharp/van der Heijde Method (SHS) for Scoring Radiographs:
Van der Heijde DM. How to read radiographs according to the Sharp/van der Heijde method. J Rheumatol 1999;26:743-5.

Sharp Scoring System for Radiographic Rheumatoid Arthritis (RA):
Sharp JT, Young DY, Bluhm GB, Brook A, Brower AC, Corbett M, et al. How many joints in the hands and wrists should be included in a score of radiologic abnormalities used to assess rheumatoid arthritis? Arthritis Rheum 1985;28:1326-35

How to read radiographs according to the Sharp/van der Heijde method.
J Rheumatol. 2000 Jan;27(1):261-3.