Instructions: Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).
Input: Abstract: We treated a case of congenital membranous stenosis of the esophagus successfully by transendoscopic incision. We discuss various types of true congenital esophageal stenosis and their treatment, to distinguish these rare anomalies from the more frequently encountered acquired variety.
Which is the apt title for the abstract? option1: Congenital esophageal stenosis. Transendoscopic web incision. option2: Inhibitory neurones of a motor pattern generator in Xenopus revealed by antibodies to glycine.
Output:
Congenital esophageal stenosis. Transendoscopic web incision.