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Salem MN, Taha HA, Abd El-Fattah El-Feqi M, Eesa NN, Mohamed RA.Salem MN, et al. Among authors: mohamed ra.Z Rheumatol. 2018 Feb;77(1):71-77. doi: 10.1007/s00393-016-0184-1.Z Rheumatol. 2018.PMID: 27619369English.