title: Ethical and moral issues of in vitro fertilization. Introduction: the scientific basis of ethics.
mesh_terms: D000022:Abortion, Spontaneous; D033421:Beginning of Human Life; D001634:Bibliographies as Topic; D033041:Embryo Research; D004992:Ethics, Medical; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D019369:Life; D011247:Pregnancy; D012098:Reproduction; D038522:Twinning, Monozygotic; D026712:Value of Life