title: RETIRED: Determination of gestational age by ultrasound.
abstract: This document has been archived because it contains outdated information. It should not be consulted for clinical use, but for historical research only. Please visit the journal website for the most recent guidelines.
authors: Fredericton NB.
authors: Kimberly
authors: K
authors: Butt
authors: Vancouver BC.
authors: Ken
authors: K
authors: Lim
mesh_terms: D000886:Anthropometry / Q000379:methods; D003362:Cost-Benefit Analysis; D018568:Crown-Rump Length; D019317:Evidence-Based Medicine; D005260:Female; D005865:Gestational Age; D006801:Humans; D016239:MEDLINE; D008597:Menstrual Cycle; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000191:economics / Q000379:methods; D015017:Yolk Sac
keywords: dating; gestational age; ultrasound