Oliveira, K. R. M.; Galliza Santana Montalvão, J. .; Camelier, A. A.; Rosa, F. W. Research Protocol: The Impact of Peptic Ulcers on Patients With Chronic Obstructive Pulmonary Disease. Evidence 2022, 4, e3984. https://doi.org/10.17267/2675-021Xevidence.2022.e3984.