Efficacy and safety of auriculotherapy based on syndrome differentiation for constipation vs. western medicine: a systematic review of randomized controlled trials

Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China; Beijing Institute of Traditional Chinese Medicine, Beijing, China; Beijing Evidence-Based Chinese Medicine Center, Beijing, China; Graduate School, Beijing University of Traditional Chinese Medicine, Beijing, China; Graduate School, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China Contributions: (I) Conception and design: T Wang, B Li; (II) Administrative support: None; (III) Provision of study materials or patients: T Wang; (IV) Collection and assembly of data: T Wang, X Wang, B Li, L Xu, R Wang; (V) Data analysis and interpretation: S He, Q He, M Fang; (VI) Manuscript writing: All authors; (VII) Final approval of manuscript: All authors. Correspondence to: Bo Li. Beijing Hospital of Traditonal Chinese Medicine, Capital Medical University, No. 23 Art Gallery Back Street, Dongcheng District, Beijing 100010, China. Email: libo@bjzhongyi.com.