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mammalian only; IM for ethical, legal, moral, social, or religious aspects of research on embryos; do not routinely add for research involving embryos; embryonic stem cell research: index EMBRYONIC STEM CELL RESEARCH see STEM CELL RESEARCH + EMBRYONIC STEM CELLS & do not index here
Scope Note
Experimentation on, or using the organs or tissues from, a human or other mammalian conceptus during the prenatal stage of development that is characterized by rapid morphological changes and the differentiation of basic structures. In humans, this includes the period from the time of fertilization to the end of the eighth week after fertilization.
Experimentation on, or using the organs or tissues from, a human or other mammalian conceptus during the prenatal stage of development that is characterized by rapid morphological changes and the differentiation of basic structures. In humans, this includes the period from the time of fertilization to the end of the eighth week after fertilization.