Moura, C., E. Chaves, T. Chianca, S. Ruginsk, D. Nogueira, and D. Iunes. “Effects of Auricular Acupuncture on Chronic Pain in People With Back Musculoskeletal Disorders”. Revista Da Escola De Enfermagem Da USP, Vol. 53, Mar. 2019, p. e03418, doi:10.1590/s1980-220x2018009003418.