- Correspondence to Dr Gabor G Illei, Sjögren's Syndrome Clinic, National Institute of Dental and Craniofacial Research, National Institutes of Health, 10 Center Drive, Room 1N 110, Bethesda, Maryland 20892, USA;
- Received January 6, 2012
- Accepted July 3, 2012
- First published August 2, 2012.
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