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Credit
Ueber angeborene Stenose des Pylorus : Inaugural-Dissertation zur Erlangung der medicinischen Doctorwürde der hohen medicinischen Facultät der Universität Freiburg i. B. / vorgelegt von Heinrich Landerer. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.