地牢
发表于 2025-3-25 05:29:58
The Design of Subprimate Animal Studies3; Wilson, 1973; Swiss Academy of Medical Sciences, 1974). It is, therefore, well nigh impossible to find a novel line of approach to the subject, and there must inevitably be a great deal of repetition.
TSH582
发表于 2025-3-25 10:14:32
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Congestion
发表于 2025-3-25 14:39:21
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OUTRE
发表于 2025-3-25 16:16:48
Cell, Tissue, and Organ Culture as Teratologic Toolsf these scientific approaches. Although in the strict sense the study of teratology implies environmental agents, the effect of mutant genes in development is so obviously related that some consideration will be given to the latter area in this discussion. Technical advances in these areas now offer
defuse
发表于 2025-3-25 21:33:10
Whole Embryo Explants and Transplantscribed the cleavage of the one-cell stage. Heape (1890) made the first classic experiment in egg transfer, injecting eggs from an Angora rabbit into a Belgian Hare rabbit and successfully obtaining the birth of Angora young. Following this pioneer work, the science (some would say art) of mammalian
易怒
发表于 2025-3-26 01:42:21
Survey of , Systems: Their Potential Use in Teratogenicity Screening testing for teratogenicity in anything less than a pregnant mammal has generally been rejected by the scientists and regulatory officials who are responsible for safety evaluations. This aversion has been based on the sound premise that the maternal-placental-embryonic relationship could not be dup
novelty
发表于 2025-3-26 06:40:37
The Structure and Uses of Genetically Homogeneous Lines of Animalsviously. To discuss this question fruitfully it is necessary to remember that, like the phenomena teratologists explore, the purposes of teratological studies are many and varied. The means of attaining these purposes must therefore also be diverse.
条约
发表于 2025-3-26 11:31:07
Multigeneration Reproduction Studies human population at all stages of exposure, including pregnancy. Foi food additives, pesticides, and all types of environmental contaminants, exposure is usually chronic, but exposure to drugs may be acute or chronic. It is generally agreed that in testing procedures the exposure of laboratory anim
MINT
发表于 2025-3-26 14:07:04
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Psychogenic
发表于 2025-3-26 18:24:56
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