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Hackshaw AK, Kennard A, Wald NJ.Hackshaw AK, et al. Among authors: wald nj.J Med Screen. 1995;2(4):228-9. doi: 10.1177/096914139500200411.J Med Screen. 1995.PMID: 8719154No abstract available.
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Law MR, Morris JK, Wald NJ.Law MR, et al. Among authors: wald nj.J Med Screen. 1999;6(1):16-20. doi: 10.1136/jms.6.1.16.J Med Screen. 1999.PMID: 10321365