Lelia Duley Books

Clinical Trials

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This authoritative book discusses the use of clinical trials in health sciences including why they are important, how to do them and how they can be used most relevantly in health care for the future.

A Cochrane pocketbook.

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Pregnancy and Childbirth

By Caroline A. Crowther, James P. Neilson, Zarko Alfirevic, Lelia Duley, G. Justus Hofmeyr

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Pregnancy and Childbirth

By Gillian M. L. Gyte, Caroline A. Crowther, Zarko Alfirevic, Lelia Duley, Metin Gulmezoglu

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Pregnancy and Childbirth

By Caroline A. Crowther, James P. Neilson, Zarko Alfirevic, Lelia Duley, G. Justus Hofmeyr

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Pregnancy and Childbirth

By Caroline A. Crowther, James P. Neilson, Zarko Alfirevic, Lelia Duley, G. Justus Hofmeyr

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Clinical Trials

By Barbara Farrell, Leila Duley

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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.