Fourth Edition D Coggon PHD, DM, FRCP, FFOM Reader in Occupational and Environmental Medicine, Medical Research Council Environmental Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton UK Geoffrey Rose DM, DSC, FRCP, FFPHM late Emeritus Professor of Epidemiology, Department of Epidemiology, London School of Hygiene and Tropical Medicine, London UK DJP Barker, PHD, MD, FRCP, FFPHM, FRCOG Professor of Clinical Epidemiology and Director, Medical Research Council Environmental Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton UK   Contents 1. What is epidemiology? 2. Quantifying disease in populations 3. Comparing disease rates 4. Measurement error and bias 5. Planning and conducting a survey 6. Ecological studies 7. Longitudinal studies 8. Case-control and cross sectional studies 9. Experimental studies 10. Screening 11. Outbreaks of disease 12. Reading epidemiological reports 13. Further reading   Copyright BMJ Publishing Group 1997 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording and/or otherwise, without the prior written consent of the publishers.