AndradeD. da S., CôrtesJ.P. de R., FernandesP.B., FerreiraI.F., CôrtesP.P. de R. and FerrazA.R. 2021. Therapeutic approach to esophageal achalasia: case reports. Electronic Journal Collection Health. 13, 1 (Jan. 2021), e5333. DOI:https://doi.org/10.25248/reas.e5333.2021.