Leonard R. Johnson PhD Books

Encyclopedia of Gastroenterology

By Leonard R. Johnson

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Essential Medical Physiology

By Leonard R. Johnson

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This book covers all principal subjects in modern medical school human physiology courses. It includes chapters on general physiology, as well as cardiovascular, respiratory, renal, gastrointestina...

Gastrointestinal Physiology: Mosby Physiology Monograph Series

By Leonard R. Johnson, Leonard R. Johnson PhD

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Gastrointestinal Physiology

By Leonard R. Johnson

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Gastrointestinal Physiology

By Thomas A. Gerwin, Leonard R. Johnson

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Gastrointestinal Physiology

By Leonard R. Johnson

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Gastrointestinal Physiology Elsevier eBook on VitalSource

By Leonard R. Johnson PhD

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Gastrointestinal Physiology Elsevier eBook on Intel Education Study

By Leonard R. Johnson PhD

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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.