Correction to: Intradermal acupuncture for rheumatoid arthritis: study protocol for a randomised controlled trial

Trials. 2021 Aug 12;22(1):533. doi: 10.1186/s13063-021-05514-z.

¹ School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, 510405, Guangdong Province, China.
² Department of Spleen and Stomach Diseases, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, Guangdong Province, China.
³ School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, 510405, Guangdong Province, China. fau20@126.com.
⁴ School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, 510405, Guangdong Province, China. 1327758056@qq.com.

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