title: Intensive follow-up of control subjects: is it necessary?
authors.forename: B W
authors.initials: BW
authors.lastname: Alderman
mesh_terms: D003120:Colorado / Q000453:epidemiology; D003398:Craniosynostoses / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D016015:Logistic Models; D008297:Male; D015983:Selection Bias