OOIR: Observatory of International Research

Papers

(The H4-Index of Human Reproduction is 42. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-07-01 to 2024-07-01.)

Article	Citations
Semen impairment and occurrence of SARS-CoV-2 virus in semen after recovery from COVID-19	143
International Committee for Monitoring Assisted Reproductive Technologies world report: assisted reproductive technology, 2014	127
Erastin induces ferroptosis via ferroportin-mediated iron accumulation in endometriosis	123
20 years of the European IVF-monitoring Consortium registry: what have we learned? A comparison with registries from two other regions	116
Ovarian follicular function is not altered by SARS–CoV-2 infection or BNT162b2 mRNA COVID-19 vaccination	114
International Committee for Monitoring Assisted Reproductive Technologies world report: assisted reproductive technology 2012†	110
Patient experiences of fertility clinic closure during the COVID-19 pandemic: appraisals, coping and emotions	93
Definition, diagnostic and therapeutic options in recurrent implantation failure: an international survey of clinicians and embryologists	92
Twin Peaks: more twinning in humans than ever before	88
Impact of low serum progesterone levels on the day of embryo transfer on pregnancy outcome: a prospective cohort study in artificial cycles with vaginal progesterone	80
Septum resection versus expectant management in women with a septate uterus: an international multicentre open-label randomized controlled trial	76
Measuring the global disease burden of polycystic ovary syndrome in 194 countries: Global Burden of Disease Study 2017	75
Fertility patients under COVID-19: attitudes, perceptions and psychological reactions	72
In-vitro maturation of oocytes versus conventional IVF in women with infertility and a high antral follicle count: a randomized non-inferiority controlled trial	68
Is fertility reduced in ovulatory women with polycystic ovary syndrome? An opinion paper	68
Effects of COVID-19 and mRNA vaccines on human fertility	67
The risk of birth defects with conception by ART	66
Individualised luteal phase support in artificially prepared frozen embryo transfer cycles based on serum progesterone levels: a prospective cohort study	66
Mitochondria-targeted therapeutics, MitoQ and BGP-15, reverse aging-associated meiotic spindle defects in mouse and human oocytes	64
Persistence of SARS-CoV-2 in the first trimester placenta leading to transplacental transmission and fetal demise from an asymptomatic mother	64
Mapping the entire functionally active endometrial microbiota	59
Multigenerational and transgenerational impact of paternal bisphenol A exposure on male fertility in a mouse model	59
Live births following fertility preservation using in-vitro maturation of ovarian tissue oocytes	59
Post-Caesarean section niche-related impaired fertility: hypothetical mechanisms	55
Adenomyosis of the inner and outer myometrium are associated with different clinical profiles	55

Fallopian tube epithelial cells express androgen receptor and have a distinct hormonal responsiveness when compared with endometrial epithelium	53
Obstetric and perinatal outcomes following programmed compared to natural frozen-thawed embryo transfer cycles: a systematic review and meta-analysis	50
Safety of fertility preservation techniques before and after anticancer treatments in young women with breast cancer: a systematic review and meta-analysis	50
Should we be measuring DNA damage in human spermatozoa? New light on an old question	50
Impact of trophectoderm biopsy on obstetric and perinatal outcomes following frozen–thawed embryo transfer cycles	49
Systematic evaluation of endometriosis by transvaginal ultrasound can accurately replace diagnostic laparoscopy, mainly for deep and ovarian endometriosis	49
Reduced FSH and LH action: implications for medically assisted reproduction	49
Undetectable viral RNA in oocytes from SARS-CoV-2 positive women	49
Hereditary thrombophilia and recurrent pregnancy loss: a systematic review and meta-analysis	48
High birth weight and large-for-gestational-age in singletons born after frozen compared to fresh embryo transfer, by gestational week: a Nordic register study from the CoNARTaS group	48
The healthy female microbiome across body sites: effect of hormonal contraceptives and the menstrual cycle	47
Analysing endometrial microbiome: methodological considerations and recommendations for good practice	47
Pregnancy outcomes following in vitro fertilization frozen embryo transfer (IVF-FET) with or without preimplantation genetic testing for aneuploidy (PGT-A) in women with recurrent pregnancy los	46
DNA fragmentation of sperm: a radical examination of the contribution of oxidative stress and age in 16 945 semen samples	45
Magnetic resonance imaging classification of deep pelvic endometriosis: description and impact on surgical management	45
Effects of different cycle regimens for frozen embryo transfer on perinatal outcomes of singletons	45
Analysis of serum and endometrial progesterone in determining endometrial receptivity	44
The changing tide of human fertility	42