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Vitamin D levels in Indian systemic lupus erythematosus patients: association with disease activity index and interferon alpha

Manamita Mandal, Rina Tripathy, Aditya K Panda, Sarit S Pattanaik, Simanchal Dakua, Anjan Kumar Pradhan, Soumen Chakraborty, Balachandran Ravindran* and Bidyut K Das*

Arthritis Research & Therapy 2014, 16:R49  doi:10.1186/ar4479

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