Complementary and Alternative Healing University 
中藥詞典 Chinese Herb Dictionary
Complementary and Alternative Healing University |
LD50 (in English and Chinese 中英文) Translated by: Joe Hing Kwok Chu 朱興國編譯 LD50 is the amount of a toxic agent (as a poison, virus, or radiation) that is sufficient to kill 50 percent of a population of animals usually within a certain time
半數致死量：是指在一定的時間內能夠引起試驗動物一半死亡的藥物劑量，通常用藥物致死劑量的對數值表示。
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