title: Counts or clusters?
authors.affiliation: Department of Public Health and Community Medicine, University of Melbourne.
authors.forename: J
authors.initials: J
authors.lastname: Gunn
authors.forename: N
authors.initials: N
authors.lastname: Kerse
mesh_terms: D000293:Adolescent; D000328:Adult; D001265:Athletic Injuries / Q000453:epidemiology; D001315:Australia / Q000453:epidemiology; D016000:Cluster Analysis; D003625:Data Collection / Q000379:methods*; D005194:Family Practice; D006801:Humans; D008499:Medical Records