Philip O. Katz Books

Dyspepsia Key Diseases Series Key Diseases Series

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Reflux Laryngitis and Related Conditions

By Dahlia Sataloff, Donald O. Castell, Robert Thayer Sataloff, Philip O. Katz

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Esophageal Function Testing An Issue of Gastrointestinal Endoscopy Clinics The Clinics Internal Medicine

By Charles J. Lightdale, Philip O. Katz

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Curbside Consultation in GERD

By Philip Katz

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"Are you looking for concise, practical answers to questions that are often left unanswered by traditional GERD references? Are you seeking brief, evidence-based advice for complicated cases or com...

Reflux laryngitis and related disorders

By Robert Thayer Sataloff

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Gastroenterology an Issue of Clinics in Geriatric Medicine

By Amir E. Soumekh, Philip O. Katz

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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.