I am sorry if my comment bothered you. About your 2nd comment as a doctor I would like to add some more information to the slide. This classification is johnsons classification. Now modified johnsons classification is used. There is an additional type 5 which is diffuse ulcer than can occur in anywhere in the stomach that occurs due to nsaid use. Among the above classification type 2 & 3 are due to acid hypersecretion.
I don't see a point to laugh yes there is a mistake -accepted but behave like a doc not a grammar teacher