Contraception · 2010 · 77 citations · 12 references
InfertilityAndrologyHormonal ContraceptiveFertilityMedicineCervical Mucus QualityReproductive HealthGynecologyLevonorgestrel-releasing Intrauterine SystemSemen AnalysisHormonal Male ContraceptionReproductive BiologyPublic HealthCervical RipeningSperm PenetrabilityHuman Reproduction
12
A simple sperm penetration test.
Jan A.M. Kremer · PubMed · 1966 · 259 citations
Infertility, Urology, Andrology +7
Ovarian function during use of a levonorgestrel-releasing IUD
Ione Barbosa, Oddvar Bakos, Sven‐Eric Olsson et al. · Contraception · 1990 · 141 citations