Self controlled case series methods: an alternative to standard epidemiological study designs.
Department of Primary Care and Population Health, University College London, London NW3 2PF, UK Department of Clinical Epidemiology, Aarhus University, Aarhus N, Denmark i.petersen@ucl.ac.uk.
Irene
I
Petersen
London School of Hygiene and Tropical Medicine, London, UK.
Ian
I
Douglas
Department of Mathematics and Statistics, Open University, Milton Keynes, UK.
Heather
H
Whitaker
D015340:Epidemiologic Research Design; D006801:Humans; D012042:Registries; D012107:Research Design / Q000592:standards*