By Galloway P.   Greer I.A.   Sattar N.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|101|1|4-5

Elsevier‎(2002)‎

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By Galloway P.R.   in Population Studies

ISSN:0032-4728|39|3|487-505

Routledge Ltd‎(1985)‎

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