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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

Alberto Sulli, Vanessa Smith and Maurizio Cutolo*

Arthritis Research & Therapy 2011, 13:301  doi:10.1186/ar3201

See related research by Correa et al., and related letter by Correa et al.,