Anthony J. Levitt Books

The Thyroid Axis And Psychiatric Illness

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This book assembles the latest information about the relationship between thyroid state and behavior. It is intended to serve as a reference for both the basic scientist and the clinician in the fi...

Canadian Consensus Guidelines For The Treatment Of Seasonal Affective Disorder

By Raymond W. Lam, Anthony J. Levitt

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Clinical Guidelines For The Treatment Of Seasonal Affective Disorder

By LAM, Raymond Lam, Anthony Levitt, Anthony J. Levitt, Raymond W. (Md) And Levitt, Anthony J. (Eds)

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Conquering Depression

By JOFFE, Anthony J. Levitt, Russell T. Joffe, Anthony J. Levitt MD, Russell Joffe MD

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Depression is one of the most common illnesses today, affecting one in five people at some time in their lives. It is potentially a severe and disabling mental illness influencing all aspects of a...

Conquering Depression

By JOFFE, Anthony J. Levitt, Russell T. Joffe, Antony J. Levitt

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Depression is one of the most common illnesses today, affecting one in five people at some time in their lives. It is potentially a severe and disabling mental illness influencing all aspects of a...

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.