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Prenatal Diagnosis|March 1, 1994
The influence of serum screening on the amniocentesis rate in women of advanced maternal ageJ R Beekhuis, B T De Wolf, A Mantingh, et al.Nederlands Tijdschrift Voor Geneeskunde|September 9, 1995
[Serum screening for fetal Down syndrome in pregnant women with an indication for prenatal diagnosis because of age: fewer amniocenteses]L H Kornman, J R Beekhuis, A Mantingh, et al.American Journal of Obstetrics and Gynecology|October 1, 1990
Pelvimetry by magnetic resonance imaging in breech presentationA J van Loon, A Mantingh, C J Thijn, et al.Prenatal Diagnosis|October 1, 1992
Second-trimester maternal serum immunoreactive inhibin as a marker for fetal Down's syndromeJ M Van Lith, J J Pratt, J R Beekhuis, et al.Prenatal Diagnosis|August 1, 1992
Increased maternal serum alpha-fetoprotein and human chorionic gonadotropin in compromised pregnancies other than for neural tube defects or Down syndromeJ R Beekhuis, J M Van Lith, B T De Wolf, et al.British Journal of Obstetrics and Gynaecology|September 1, 1992
Fetal heart rate in early pregnancy and chromosomal disordersJ M Van Lith, G H Visser, A Mantingh, et al.Prenatal Diagnosis|September 1, 1986
Abnormal karyotype in the chorion, not confirmed in a subsequently aborted fetusA Breed, A Mantingh, L Govaerts, et al.Prenatal Diagnosis|February 1, 1997
The stability of hCG and free beta-subunit in serum samplesA Kardana, L A ColeThe Journal of Clinical Endocrinology and Metabolism|November 1, 1990
Serum HCG beta-core fragment is masked by associated macromoleculesA Kardana, L A ColeLancet (London, England)|March 7, 2000
False diagnosis and needless therapy of presumed malignant disease in women with false-positive human chorionic gonadotropin concentrationsS Rotmensch, L A ColePageof 16