Gary C. Brown Books

Congenital anomalies of the optic disc

By Gary C. Brown

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Brown s Pine Ridge Stories

By Mr. Gary C. Brown

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Evidence-Based To Value-Based Medicine

By Sanjay Sharma, AMA, Gary C. Brown, Melissa M. Brown, Brown, Melissa M, Brown, Gary C., 1949-, Sharma, Sanjay, M.D

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A former Medicare/Medicaid administrator notes in prefatory remarks that "if this 'objective evaluation' stuff was easy, it would have happened long ago." In 1989, Dr. Brown (U. of Pennsylvania Sch...

Glaucoma Current Opinion in Ophthalmology

By Gary C. Brown

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Little Walk in the Park

By Gary Brown

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Shade Tree Conversions

By Gary Brown

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Vitreoretinal Disease : Diagnosis, Management, And Clinical Pearls

By Carl D. Regillo, Gary C. Brown, Ingrid U. Scott, Harry W Flynn

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The management of major vitreoretinal diseases has changed dramatically since publication of the first edition in 1999. The field continues to evolve rapidly and is becoming an increasingly complex...

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.