Comorbidities are frequent in patients with gastroesophageal reflux disease in a tertiary health care hospital . Clinics, [S. l.], v. 64, n. 8, p. 785–790, 2009. DOI: 10.1590/S1807-59322009000800013. Disponível em: https://www.revistas.usp.br/clinics/article/view/17946.. Acesso em: 13 may. 2024.