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Letter to the Editor

Coexistence of rheumatoid arthritis and systemic lupus erythematosus is still rare in the biologic era: Report of seven cases and literature review

, , , , &
Pages 1082-1083 | Received 18 Jul 2019, Accepted 15 Oct 2019, Published online: 30 Oct 2019
 

Acknowledgements

The protocol for this study was approved by the ethics committee of Osaki Citizen Hospital.

Conflict of interest

None

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