Luis Guzmán

No ORCID on file · 3 papers in corpus
rct 2026
Blastocyst Morphology in Oocyte Donors stimulated During the Late Follicular Phase with either rFSH:rLH or HP-hMG in a PPOS protocol: a Pilot Randomized Controlled Trial
JBRA assisted reproduction ·doi:10.5935/1518-0557.20260030

OBJECTIVE: The aim of this study was to investigate whether there were differences in the number of good-quality blastocysts after 6 days of treatment with r-hFSH followed by late follicular phase treatment with r-hFSH:r-hLH in a 2:1 fixed …

meta-analysis 2026
Comparative Effectiveness of Recombinant Human Follicle-Stimulating Hormone:Recombinant Human Luteinizing Hormone in a 2:1 Ratio versus Highly Purified Human Menopausal Gonadotropin Alone in Ovarian Stimulation for Medically Assisted Reproduction Treatment Using in vitro Fertilization/Intracytoplasmic Sperm Injection: A Systematic Review and Meta-Analysis
Gynecologic and obstetric investigation ·doi:10.1159/000550420

UNLABELLED: Introduction: Investigation of the number of oocytes recovered from different ovarian stimulation (OS) protocols is essential, as oocyte number is positively associated with the number of good-quality embryos obtained; however, …

review 2022
Time-Lapse Embryo culture: A better understanding of embryo development and clinical application
JBRA assisted reproduction ·doi:10.5935/1518-0557.20210107

Conventional embryo assessment is performed by removing embryos from incubators at least once a day. However, it is static and limited to specific time points, reducing the amount of information that could potentially be obtained. Fortunate…