Tamara L. Callahan Books

Blueprints in Obstetrics and Gynecology

By Linda J. Heffner, Tamara L. Callahan, Aaron B. Caughey

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Obstetrics and Gynecology

By Linda Heffner, Tamara L. Callahan, Aaron B. Caughey

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This book is one of five in the Blueprints Series. This title presents the principles of Obstetrics and Gynecology in a succinct format that complements the structure of the USMLE Step 2 exam. It c...

Blueprints Bundle USMLE Steps 2 3 Review Series the Blueprint Series

By Ronald L. M.D. Cowan, Vincent B. Young, David Soybel, William A. Kormos, Katie S. Fine, Lloyd I. M.D. Sederer, Seth J. Karp, Allan H. Goroll, James Morris, Michael J. Murphy, Bradley S. Marino, Julia A. McMillan, Tamara L. Callahan

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Blueprints obstetrics gynecology

By Aaron B Caughey, Tamara L. Callahan

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This popular Blueprints book has been refined and updated while keeping the concise, organized style and clinical high-yield content of previous editions. Features include USMLE-style questions and...

Blueprints Obstetrics Gynecology

By Linda Margaret Hopkins, Juan E. Vargas, Arzou M.D. Ahsan, Tamara L. Callahan, Aaron B. Caughey

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Blueprints obstetrics gynecology

By Tamara L. Callahan

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This book provides students with a concise review of content for their ob/gyn rotations and the Boards. Each chapter is brief and includes pedagogical features such as bolded key words, tables, fig...

Blueprints in obstetrics and gynecology

By Tamara L. Callahan

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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.