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Human Reproduction (Oxford, England)|July 1, 1995
When is the post-coital test normal? A critical appraisalS G Oei, F M Helmerhorst, M J KeirseNederlands Tijdschrift Voor Geneeskunde|October 14, 1995
[Variations in fertility studies in The Netherlands]F M Helmerhorst, S G Oei, K W Bloemenkamp, et al.Human Reproduction (Oxford, England)|August 1, 1995
Consistency and variation in fertility investigations in EuropeF M Helmerhorst, S G Oei, K W Bloemenkamp, et al.British Journal of Obstetrics and Gynaecology|August 1, 1995
European postcoital tests: opinions and practiceS G Oei, M J Keirse, K W Bloemenkamp, et al.Fertility and Sterility|April 1, 1996
Effect of the postcoital test on the sexual relationship of infertile couples: a randomized controlled trialS G Oei, F M Helmerhorst, K W Bloemenkamp, et al.European Journal of Obstetrics, Gynecology, and Reproductive Biology|February 1, 1996
Evaluation of the postcoital test for assessment of 'cervical factor' infertilityS G Oei, K W Bloemenkamp, F M Helmerhorst, et al.European Journal of Obstetrics, Gynecology, and Reproductive Biology|May 1, 1997
Predicting optimal cervical mucus for infertility diagnosisS G Oei, F M Helmerhorst, K W Bloemenkamp, et al.BMJ (Clinical Research Ed.)|August 26, 1998
Effectiveness of the postcoital test: randomised controlled trialS G Oei, F M Helmerhorst, K W Bloemenkamp, et al.American Journal of Obstetrics and Gynecology|May 1, 1996
Prostanoid excretion in incipient singleton and twin pregnanciesR M van der Weiden, F M Helmerhorst, M J KeirseHuman Reproduction (Oxford, England)|March 1, 1991
Influence of prostaglandins and platelet activating factor on implantationR M van der Weiden, F M Helmerhorst, M J KeirsePageof 30