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We have read with great interest the publication by Langer et al.1 Pancreatic cancer surveillance of high-risk individuals may have the potential to alter the dismal prognosis of this deadly disease. Although promising, its application is a learning experience and results of pancreatic cancer surveillance studies are eagerly awaited. Although we greatly value the efforts of Langer et al we have some comments and questions.
The title of their paper suggests a prospective cohort study with a median follow-up observation period of 5 years. …