title: Leveling the playing field for grandfather's sperm.
authors: Jerome H
authors: JH
authors: Check
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D001755:Blastocyst / Q000473:pathology; D015331:Cohort Studies; D010064:Embryo Implantation; D004624:Embryo Transfer; D047108:Embryonic Development; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007247:Infertility, Female / Q000503:physiopathology / Q000628:therapy*; D007248:Infertility, Male / Q000150:complications* / Q000473:pathology; D050498:Live Birth; D008297:Male; D008875:Middle Aged; D018587:Oocyte Donation; D011247:Pregnancy; D018873:Pregnancy Rate; D012189:Retrospective Studies; D012307:Risk Factors; D012661:Semen / Q000166:cytology; D020554:Sperm Injections, Intracytoplasmic; D013081:Sperm Motility; D017211:Treatment Failure