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Prenatal Diagnosis|April 29, 1998
Screening for Down syndrome at 14 weeks of pregnancyN J Wald, H C Watt, J E Haddow, et al.
BMJ (Clinical Research Ed.)|December 11, 1997
Helicobacter pylori infection and mortality from ischaemic heart disease: negative result from a large, prospective studyN J Wald, M R Law, J K Morris, et al.
Clinica Chimica Acta; International Journal of Clinical Chemistry|March 15, 1990
How should urinary cotinine concentrations be adjusted for urinary creatinine concentration?S G Thompson, R D Barlow, N J Wald, et al.
Journal of Internal Medicine|February 4, 2017
Mortality from aortic stenosis: prospective study of serum calcium and phosphateD S Wald, F A Bangash, J K Morris, et al.
Prenatal Diagnosis|September 1, 1990
Maternal smoking habits and Down's syndromeH S Cuckle, E Alberman, N J Wald, et al.
Prenatal Diagnosis|August 1, 1996
Effect of allowing for ethnic group in prenatal screening for Down's syndromeH C Watt, N J Wald, D Smith, et al.
Lancet (London, England)|January 5, 2002
Quantifying the effect of folic acidN J Wald, M R Law, J K Morris, et al.
BMJ (Clinical Research Ed.)|June 28, 2003
Value of low dose combination treatment with blood pressure lowering drugs: analysis of 354 randomised trialsM R Law, N J Wald, J K Morris, et al.
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