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Prenatal Diagnosis|August 1, 1994
Maternal serum free alpha-human chorionic gonadotrophin levels in twin pregnancies: implications for screening for Down's syndromeN J Wald, J W DensemBritish Journal of Obstetrics and Gynaecology|August 1, 1982
Nomogram for estimating an individual's risk of having a fetus with open spina bifidaN J Wald, H S CuckleBMJ (Clinical Research Ed.)|June 28, 1997
Prospective study of effect of switching from cigarettes to pipes or cigars on mortality from three smoking related diseasesN J Wald, H C WattJournal of Medical Screening|September 15, 2005
Graphical presentation of distributions of risk in screeningJ K Morris, N J WaldBritish Journal of Obstetrics and Gynaecology|July 1, 1982
Evidence against oral contraceptives as a cause of neural-tube defectsH S Cuckle, N J WaldPrenatal Diagnosis|September 22, 1998
Alternative methods of maternal weight adjustment in maternal serum screening for Down syndrome and neural tube defectsH C Watt, N J WaldCancer Letters|September 30, 1985
Can the coverage of screening for cancer of the cervix be improved using the Electoral Register? A pilot studyG A Cook, N J WaldPrenatal Diagnosis|August 1, 1996
Serum markers for Down's syndrome in relation to number of previous births and maternal ageN J Wald, H C WattPrenatal Diagnosis|April 1, 1994
Maternal serum free beta-human chorionic gonadotrophin levels in twin pregnancies: implications for screening for Down's syndromeN J Wald, J W DensemBailliere'S Best Practice & Research. Clinical Obstetrics & Gynaecology|September 14, 2000
Advances in antenatal screening for Down syndromeN J Wald, A K HackshawPageof 534