title: Cohort effects explain the increase in autism diagnosis: an identifiability problem of the age-period-cohort model.
authors.affiliation: Section for Biostatistics, Department of Public Health, Aarhus University stefanh@biostat.au.dk.
authors.forename: Stefan N
authors.initials: SN
authors.lastname: Hansen
authors.affiliation: Section for Biostatistics, Department of Public Health, Aarhus University.
authors.forename: Erik T
authors.initials: ET
authors.lastname: Parner
mesh_terms: D001321:Autistic Disorder / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male