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Effects of a split keyboard design and wrist rest on performance, posture, and comfort
Smith MJ, Karsh BT, Conway FT, Cohen WJ, James CA, Morgan JJ, Sanders K, Zehel DJ
Human Factors 1998 Jun;40(2):324-336
clinical trial
4/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

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