Veiga Fernandes, F., Costa, P.M., Reis, C., Mascarenhas, L., Carvalhinhos, A. and Moura, M.L. 1989. Surgical therapy of reflux esophagitis in patients with normal lower esophageal sphincter pressure. Acta Médica Portuguesa. 2, 1 (Feb. 1989), 21–5. DOI:https://doi.org/10.20344/amp.3448.