Macleod’s presentation at a meeting of the Association of American Physicians in Washington on May 3 1922 received a standing ovation from the audience, because it appeared to indicate a major breakthrough was imminent, but obstacles still lay ahead.

Source: https://www.pressandjournal.co.uk/fp/lifestyle/6197126/john-macleod-was-airbrushed-from-history-but-aberdeens-only-nobel-prize-winner-is-finally-getting-his-due/