@article{c05892bcdf97468fa194515054640d3c,
title = "α-Fetoprotein levels in amniotic fluid between 11 and 15 weeks",
abstract = "We have shown that α-fetoprotein levels in amniotic fluid peak at 13 weeks and then fall by about 10% a week until 20 weeks. Use of cutoff levels obtained by extrapolation backward from medians at later dates gives results that are too high and could cause diagnostic errors. The ability to monitor α-fetoprotein levels accurately provides an advantage to this method of early prenatal diagnosis.",
keywords = "Amniocentesis, amniotic fluid, fetal serum, α-fetoprotein",
author = "Crandall, {Barbara F.} and Hanson, {Frederick W.} and Frances Tennant and Perdue, {Sondra T.}",
note = "Funding Information: From the Departments of Psychzatry and Pediatrics, University of California, Los Angeles, and the Department of Obstetncs and Gynecology, University of California, Davis. Supported in part by grant HD 07032 for Research Training in Mental Retardation and grant 87-91046 for Genetic Disease Sec-tion, California State Department of Health Science. ReceivedforpubllCattonMa.~ 20,1988; revzsed September 27,1988; accepted December 7, 1988. Reprint requests: Barbara F. Crandall, MD, Neuropsychiatnc I1zsti-tute, 760 Westwood Plaza 48-233 NPI, Los Angeles, CA 90024.",
year = "1989",
month = may,
doi = "10.1016/0002-9378(89)90191-9",
language = "English (US)",
volume = "160",
pages = "1204--1206",
journal = "American Journal of Obstetrics and Gynecology",
issn = "0002-9378",
publisher = "Mosby Inc.",
number = "5 PART 1",
}