Mark Hormann Books

Pediatrics PreTest Self Assessment and Review, Eleventh Edition

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Over 500 USMLE-style questions and answers referenced to core textbooks and journal articles. Complete explanations discuss right and wrong answer options. All questions are reviewed by students wh...

Case Files Pediatrics, Second Edition

By Eugene C. Toy, Mark D. Hormann, Mark Jason Sanders, Margaret C. McNeese, Rebecca Greenlee Girardet, Robert J. Yetman, Sheela L. Lahoti

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Pediatrics PreTest Self-Assessment and Review, Twelfth Edition

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This book is the perfect way to assess your knowledge of pediatrics for the USMLE Step 2 CK and shelf exams. You'll find 500 USMLE-style questions and answers that address the clerkship's core comp...

Case Files Pediatrics, Fifth Edition

By Sheela Lahoti, Abby Geltemeyer, Eugene Toy, Margaret McNeese, Mark Hormann, Mark Jason Sanders, Robert Yetman

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Case Files Pediatrics, Third Edition

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Pediatrics PreTest Self-Assessment And Review, Thirteenth Edition

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Case Files Pediatrics, Fourth Edition

By Eugene C. Toy

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"Sixty high-yield pediatrics cases help you sharpen your diagnostic and problem-solving skillsYou need exposure to high-yield cases to excel on the pediatrics clerkship and the shelf-exam. Case Fil...

Pediatrics PreTest Self-Assessment And Review, 14th Edition

By Mark D. Hormann, Robert J. Yetman

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Case Files Pediatrics Sixth Edition

By Eugene C. Toy, Mark D. Hormann, Margaret C. McNeese, Robert J. Yetman, Sheela L. Lahoti

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Pediatrics PreTest Self Assessment and Review Fifteenth Edition

By Mark D. Hormann, Robert J. Yetman

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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.