By Verwoerd GR   Gebhardt GS   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|24|8|934-934

Informa Healthcare‎(2004)‎

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By Engelbrecht J   Gebhardt GS   Hillermann R   Hall DR   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|24|6|662-663

Informa Healthcare‎(2004)‎

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By Gebhardt GS   Peters WHM   Hillermann R   Odendaal HJ   Carelse-Tofa K   Raijmakers MTM   Steegers EAP   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|24|8|866-872

Informa Healthcare‎(2004)‎

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By Steyn P.S.   Gebhardt G.S.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|87|2|167-168

Elsevier‎(1999)‎

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By Gebhardt G.S.   Scholtz C.L.   Hillermann R.   Odendaal H.J.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|97|2|174-177

Elsevier‎(2001)‎

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