By Karlsson M.   Edfors-Lilja I.   Björnsson S.   in Analytical Biochemistry

ISSN:0003-2697|286|1|51-58

Elsevier‎(2000)‎

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By Moss Hazel J.   Mathers A. M.   Björnsson S.   Cameron A. D.   Williams Jacky   Pell Jill   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|21|1|21-23

Informa Healthcare‎(2001)‎

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