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. 2021 Aug 20;15:694919. doi: 10.3389/fnhum.2021.694919

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Copyright © 2021 Zhang, Li, Li, Li, Hu, Xu and Yu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Proportion of the top ten most studied diseases in the reviewed studies. (B) Frequency of the top ten most used acupoints in the reviewed studies. (C) Percentage of meridians where acupoints are located in the reviewed studies. AD, Alzheimer's disease; BP, Bell's palsy; BL, the Bladder Meridian; DU, the Du Meridian; HT, the Heart Meridian; KO, Knee osteoarthritis; LI, the Liver Meridian; MCI, mild cognitive impairment; PD, Parkinson's disease; PC, the Pericardium Meridian; KI, the Kidney Meridian; RN, the Ren Meridian, RN; SJ, the Sanjiao Meridian; SP, the Spleen Meridian.