title: Early amniocentesis. What exactly does it mean?
abstract: Comparisons of the risk rates of an invasive procedure are difficult when the same term, early amniocentesis, is used to cover procedures from 9 to 15 weeks since the total loss rate is principally a function of gestational age. We propose definitions of procedures by gestational age; they should allow fair and appropriate comparisons.
authors.affiliation: Department of Obstetrics and Gynecology, Hutzel Hospital/Wayne State University School of Medicine, Detroit, Michigan.
authors.forename: M I
authors.initials: MI
authors.lastname: Evans
authors.forename: M P
authors.initials: MP
authors.lastname: Johnson
authors.forename: W
authors.initials: W
authors.lastname: Holzgreve
mesh_terms: D000649:Amniocentesis; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D009626:Terminology as Topic