As further apparent differences between different populations emerge, investigators will have to look to genetics, epigenetic and microbiome differences to explain different response rate for different population groups.11 Clinical readers of studies will have to continue to ask two questions: Do the data support the conclusion (as they do, by and large, for all the studies considered here)? And are these study patients the same as our patients?
Alexey Fomin, MD, is a second-year rheumatology fellow at the University of Louisville in Kentucky.
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W. Neal Roberts, MD, is program director and head of the rheumatology division at the University of Louisville.
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