DECLARATIONS Authors contributions Controlled the study design and preparation of the article: Ciancimino G, Pecorella F, Viscardi SM, La Mantia C, Caserta A, Pennisi G, Petta S Participated in planning and drafting the article: Ciancimino G, Pecorella F, Viscardi SM, La Mantia C, Caserta A, Pennisi G, Petta S Approved the final draft of the article: Ciancimino G, Pecorella F, Viscardi SM, La Mantia C, Caserta A, Pennisi G, Petta S Availability of data and materials Not applicable
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A large proportion of patients Holst found himself operating on during this period had duodenal ulcers, a disorder increasingly common in Western communities from the 1950s (Pesheva)