Correction to: Efficacy of electro-acupuncture and manual acupuncture versus sham acupuncture for knee osteoarthritis: study protocol for a randomised controlled trial.

After publication of the original article [1], the authors have notified us that the Trial registration number NCT03274713 should be replaced by NCT03366363 in the Abstract section of the paper.

RCT Entities:   Population Interventions Outcomes

Correction to: Trials (2019) 20:79

https://doi.org/10.1186/s13063-018-3138-x

After publication of the original article [1], the authors have notified us that the Trial registration number NCT03274713 should be replaced by NCT03366363 in the Abstract section of the paper.