title: Case-crossover designs compared with dynamic follow-up designs.
authors.affiliation: Pharmaceutical Services Division, British Columbia Ministry of Health, Victoria, BC, Canada. malcolmmaclure@shaw.ca
authors.forename: Malcolm
authors.initials: M
authors.lastname: Maclure
authors.forename: Murray A
authors.initials: MA
authors.lastname: Mittleman
mesh_terms: D000397:Air Pollution / Q000009:adverse effects; D015982:Bias; D016022:Case-Control Studies; D003627:Data Interpretation, Statistical; D004781:Environmental Exposure / Q000009:adverse effects; D005500:Follow-Up Studies; D006801:Humans; D013997:Time Factors