Tjeerd Korver

Oss, NB, Netherlands

Last Updated: 09/26/2026

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Found 13 publications

Retraction notice to "A pilot efficacy study with a single-rod contraceptive implant (Implanon®1) in 200 Indonesian women treated for ≤ 4 years" [Contraception 59/3 (1999) 167-174].

Retraction notice to "A pilot efficacy study with a single-rod contraceptive implant (Implanon®1) in 200 Indonesian women treated for ≤ 4 years" [Contraception 59/3 (1999) 167-174].

Journal: Contraception

Published: July 26, 2025

Retraction notice to "The effects of Implanon on lipid metabolism in comparison with Norplant" [Contraception 60 (1999) 281-287].

Retraction notice to "The effects of Implanon on lipid metabolism in comparison with Norplant" [Contraception 60 (1999) 281-287].

Journal: Contraception

Published: June 01, 2025

Experts' view on the role of oestrogens in combined oral contraceptives: emphasis on oestetrol (E4).

Experts' view on the role of oestrogens in combined oral contraceptives: emphasis on oestetrol (E4).

Journal: Frontiers in global women's health

Published: March 04, 2024

Can initial vaginal bleeding patterns in etonogestrel implant users predict subsequent bleeding in the first 2 years of use?

Can initial vaginal bleeding patterns in etonogestrel implant users predict subsequent bleeding in the first 2 years of use?

Journal: Contraception

Published: April 01, 2019

Phase II dose-finding study on ovulation inhibition and cycle control associated with the use of contraceptive vaginal rings containing 17β-estradiol and the progestagens etonogestrel or nomegestrol acetate compared to NuvaRing.

Phase II dose-finding study on ovulation inhibition and cycle control associated with the use of contraceptive vaginal rings containing 17β-estradiol and the progestagens etonogestrel or nomegestrol acetate compared to NuvaRing.

Journal: The European journal of contraception & reproductive health care : the official journal of the European Society of Contraception

Published: September 12, 2018

A phase 2b multicenter, randomized, double-blind, placebo-controlled clinical trial to evaluate the efficacy and safety of vaginal rings containing nomegestrol acetate or etonogestrel and 17β-estradiol in the treatment of women with primary dysmenorrhea.

A phase 2b multicenter, randomized, double-blind, placebo-controlled clinical trial to evaluate the efficacy and safety of vaginal rings containing nomegestrol acetate or etonogestrel and 17β-estradiol in the treatment of women with primary dysmenorrhea.

Journal: Contraception

Published: May 14, 2018

The effect of laquinimod, a novel immuno-modulator in development to treat Huntington disease, on the pharmacokinetics of ethinylestradiol and levonorgestrel in healthy young women.

The effect of laquinimod, a novel immuno-modulator in development to treat Huntington disease, on the pharmacokinetics of ethinylestradiol and levonorgestrel in healthy young women.

Journal: European journal of clinical pharmacology

Published: May 13, 2018

Psychometric validation of the dysmenorrhea daily diary (DysDD): a patient-reported outcome for dysmenorrhea.

Psychometric validation of the dysmenorrhea daily diary (DysDD): a patient-reported outcome for dysmenorrhea.

Journal: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation

Published: March 24, 2017

Efficacy and safety of the contraceptive vaginal ring (NuvaRing) compared with a combined oral contraceptive in Chinese women: a 1-year randomised trial.

Efficacy and safety of the contraceptive vaginal ring (NuvaRing) compared with a combined oral contraceptive in Chinese women: a 1-year randomised trial.

Journal: The European journal of contraception & reproductive health care : the official journal of the European Society of Contraception

Published: June 25, 2016

Pooled analysis of two randomized, open-label studies comparing the effects of nomegestrol acetate/17β-estradiol and drospirenone/ethinyl estradiol on bleeding patterns in healthy women.

Pooled analysis of two randomized, open-label studies comparing the effects of nomegestrol acetate/17β-estradiol and drospirenone/ethinyl estradiol on bleeding patterns in healthy women.

Journal: Contraception

Published: April 25, 2016

Comparative analysis of the effects of nomegestrol acetate/17 β-estradiol and drospirenone/ethinylestradiol on premenstrual and menstrual symptoms and dysmenorrhea.

Comparative analysis of the effects of nomegestrol acetate/17 β-estradiol and drospirenone/ethinylestradiol on premenstrual and menstrual symptoms and dysmenorrhea.

Journal: The European journal of contraception & reproductive health care : the official journal of the European Society of Contraception

Published: February 26, 2015

Efficacy, safety, and tolerability of a monophasic oral contraceptive containing nomegestrol acetate and 17β-estradiol: a randomized controlled trial.

Efficacy, safety, and tolerability of a monophasic oral contraceptive containing nomegestrol acetate and 17β-estradiol: a randomized controlled trial.

Journal: Obstetrics and gynecology

Published: April 25, 2012

Showing 1-12 of 13

Last Updated: 09/26/2026