Study designs for public health investigations: basic concepts and practice, illustrated with a case study on asthma

I Kries ; D Cromwell ; (2013) Study designs for public health investigations: basic concepts and practice, illustrated with a case study on asthma. In: Kreis, IA; Busby, A; Leonardi, G; Meara, J; Murray, V, (eds.) Essentials of Environmental Epidemiology for Health Protection A handbook for field professionals. Oxford University Press, Oxford. ISBN 9780199663415 https://researchonline.lshtm.ac.uk/id/eprint/2837718