By Falconer A. D.   Ferns P.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|22|1|43-44

Informa Healthcare‎(2002)‎

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By Ferns P.N.   Anderson J.I.   in Environmental Pollution

ISSN:0269-7491|96|1|35-42

Elsevier‎(1997)‎

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By Ferns P.N.   Mudge G.P.   in Water Research

ISSN:0043-1354|34|10|2653-2660

Elsevier‎(2000)‎

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