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Response to: Comparison of laser Doppler imaging, fingertip lacticemy test, and nailfold capillaroscopy for assessment of digital microcirculation in systemic sclerosis
Arthritis Research & Therapy 2011, 13:301 doi:10.1186/ar3201
See related research by Correa et al., http://arthritis-research.com/content/12/4/R157 and related letter by Correa et al., http://arthritis-research.com/content/13/1/302
