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Neil Pearce, Wellington: Centre for Public Health Research, 2005, pp 130. ISBN 0-476-01236-8. An electronic copy in pdf form can be dounloaded for free from the web site http://publicHealth.Masseg.ac.uk
Neil Pearce’s new textbook provides an overview of major types of epidemiological study designs and their key strengths and weaknesses. At the start, Pearce emphasises that, compared with randomised controlled trials, observational studies require special attention to sources of bias, and …