نتایج جستجو برای: subfertile stallions

تعداد نتایج: 1338  

Journal: :The Journal of clinical endocrinology and metabolism 2007
Jan W van der Steeg Pieternel Steures Marinus J C Eijkemans J Dik F Habbema Peter G A Hompes Frank J Broekmans Peter X J M Bouckaert Patrick M M Bossuyt Fulco van der Veen Ben W J Mol

CONTEXT Basal FSH is a marker for ovarian reserve. OBJECTIVES The objective of the study was to investigate the predictive value of basal FSH on spontaneous ongoing pregnancy in subfertile ovulatory women. DESIGN This was a prospective cohort study. SETTING The study was conducted in 19 fertility centers in The Netherlands. PARTICIPANTS Subfertile ovulatory women without two-sided tubal...

Journal: :Fertility and sterility 2011
Jan W van der Steeg Pieternel Steures Marinus J C Eijkemans J Dik F Habbema Peter G A Hompes Jan A M Kremer Loes van der Leeuw-Harmsen Patrick M M Bossuyt Sjoerd Repping Sherman J Silber Ben W J Mol Fulco van der Veen

OBJECTIVE To evaluate the associations between the results of the male partner's semen analysis (classified according to the World Health Organization [WHO] criteria) and fathering a child without any treatment. DESIGN Prospective multicenter cohort study. SETTING Twenty subfertility centers in The Netherlands. PATIENT(S) A total of 3,345 consecutive couples presenting for subfertility. ...

Journal: :Molecular Biology and Evolution 2020

Journal: :The New England journal of medicine 2001
D S Guzick J W Overstreet P Factor-Litvak C K Brazil S T Nakajima C Coutifaris S A Carson P Cisneros M P Steinkampf J A Hill D Xu D L Vogel

BACKGROUND Although semen analysis is routinely used to evaluate the male partner in infertile couples, sperm measurements that discriminate between fertile and infertile men are not well defined. METHODS We evaluated two semen specimens from each of the male partners in 765 infertile couples and 696 fertile couples at nine sites. The female partners in the infertile couples had normal result...

Journal: :Human reproduction 2010
K Wisborg H J Ingerslev T B Henriksen

BACKGROUND Previous studies have indicated that the risk of stillbirth is increased in singleton pregnancies achieved after assisted reproduction technology (ART). However, no previous study fully accounted for factors with potential influence on the risk of stillbirth. Further, whether fertility treatment, the possible reproductive pathology of the infertile couples or other characteristics re...

2013
Noortje M van den Boogaard Fleur AM Kersten Mariëtte Goddijn Patrick MM Bossuyt Fulco van der Veen Peter GA Hompes Rosella PMG Hermens Didi DM Braat Ben Willem J Mol Willianne LDM Nelen

BACKGROUND Prognostic models in reproductive medicine can help to identify subfertile couples who would benefit from fertility treatment. Expectant management in couples with a good chance of natural conception, i.e., tailored expectant management (TEM), prevents unnecessary treatment and is therefore recommended in international fertility guidelines. However, current implementation is not opti...

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