title: Fertilization, embryo transfer procedures raise many questions.
mesh_terms: D001675:Bioethics; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D005615:Freezing; D030342:Genetic Diseases, Inborn; D006805:Human Experimentation; D006801:Humans; D038622:Internationality; D009035:Mothers; D018587:Oocyte Donation; D011247:Pregnancy