Natanson is not in favor of shutting down blood substitute research.
Natanson不赞成停止对血液替代品的研究。
Conclusion: LEH was a low toxic and low immunogenic blood substitute.
结论：LEH是一种低毒性、低免疫原性血液制品。
He confessed his sin, and came to God through the blood of a substitute.
更美的祭是承认自己有罪，需要有祭牲流血代死。
He confessed his sin, and came to God through the blood of a substitute.
更美的祭是承认自己有罪，需要有祭牲流血代死。
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