John M. Howard Books

History of the Pancreas: Mysteries of a Hidden Organ

By John M. Howard, Walter Hess

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Surgical diseases of the pancreas

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History of the Pancreas Mysteries of a Hidden Organ

By John M. Howard

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Never before has a comprehensive history of the pancreas like History of the Pancreas been published. It not only is a historical review of the science of medicine, it is liberally interspersed wit...

History of the Pancreas: Mysteries of a Hidden Organ

By John M. Howard

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History of the Pancreas

By John M. Howard, Walter Hess

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The Life and times of Allen Oldfather Whipple

By Howard John M.

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Biography of the American surgeon who is known for the pancreatic cancer operation which bears his name (the Whipple procedure) as well as Whipple's triad.

Surgical diseases of the pancreas

By Howard John M.

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.