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American Journal of Obstetrics and Gynecology|May 1, 1997
Down syndrome and neural tube defect screening: the value of using gestational age by ultrasonographyP A Benn, A Borgida, D Horne, et al.
Cytogenetics and Cell Genetics|January 1, 1979
Confirmation of the assignment of the gene for galactose-1-phosphate uridylyltransferase (E.C. 2.7.7.12) to human chromosome 9P A Benn, G G D'Ancona, C M Croce, et al.
Obstetrics and Gynecology|July 27, 2000
Maternal serum screening for fetal trisomy 18: a comparison of fixed cutoff and patient-specific risk protocolsP A Benn, M V Leo, J F Rodis, et al.
American Journal of Medical Genetics|January 1, 1987
Chromosomal polymorphisms of 1, 9, 16, and Y in 4 major ethnic groups: a large prenatal studyL Y Hsu, P A Benn, H L Tannenbaum, et al.
American Journal of Obstetrics and Gynecology|November 22, 2001
Role of ultrasound for Down syndrome screening in advanced maternal ageJ F Egan, L Malakh, G W Turner, et al.
Obstetrics and Gynecology|September 1, 1987
Prenatal diagnosis of minute 5p- deletion: a cytogenetic problem in detectionP A Benn, L Y Hsu, R S Verma, et al.
Prenatal Diagnosis|November 1, 1984
Pericentric inversion of the Y chromosome and prenatal diagnosisL R Shapiro, R O Pettersen, P L Wilmot, et al.
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