SISK, B.; NIKORE, V.; MADSEN, C. High Prevalence of Back Pain at Free Clinics in the Sacred Valley of Peru. The Columbia University Journal of Global Health, [S. l.], v. 3, n. 1, p. 1–5, 2013. DOI: 10.7916/thejgh.v3i1.5263. Disponível em: https://journals.library.columbia.edu/index.php/jgh/article/view/5263. Acesso em: 18 jan. 2022.