Updates are available Correction dated 2019-04-10

Article History

Received: 24 July 2018

Accepted: 15 December 2018

First Online: 25 January 2019

Change Date: 10 April 2019

Change Type: Correction

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

Ethics approval and consent to participate

: This trial has been approved by the research ethical committees of Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University (2017BL-077-01), Beijing Friendship Hospital Affiliated to Capital Medical University, Dongfang Hospital Affiliated to Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Guang’an Men’s Hospital Affiliated to the China Academy of Chinese Medical Sciences, Hospital of Acupuncture and Moxibustion Affiliated to the China Academy of Chinese Medical Sciences, Beijing Hospital of Traditional Chinese and Western Medicine, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine and Affiliated Hospital of Hebei University of Chinese Medicine. Written informed consent will be obtained from all patients prior to their enrolment in the study.

: The authors declare that they have no competing interests.

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