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1. A.F. Molsberger, T. Schneider, H. Gotthardt, A. Drabik. German randomized acupuncture trial for chronic shoulder pain (GRASP)—a pragmatic, controlled, patient-blinded, multi-centre trial in an outpatient care environment. Pain, 151 (2010), pp. 146-154

2. https://www.evidencebasedacupuncture.org/present-research/digestive-system-and-metabolism/

3. https://www.acupuncture.org.au/wp-content/uploads/2017/11/28-NOV-The-Acupuncture-Evidence-Project_Mcdonald-and-Janz_-REISSUED_28_Nov.pdf

4. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3388479/

5. https://www.sciencedirect.com/science/article/pii/S2225411018300191