“…Pyloric obstruction is not infrequently produced and several instances of severe gastrointestinal bleeding have been recorded (Bradley, Klein, and Levy, 1956;Hudock, Wanner, and Reilly, 1956;Vidgoff, 1957). Essentially there is a dyspepsia which even on critical analysis is often indistinguishable from that produced by a peptic lesion in one of its various forms.…”