How is ld50 determined?

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Tags

1. #lethal
2. #expressed
3. #small
4. #kilogram
5. #tested
6. #measures
7. #weight
8. #usually
9. #poison
10. #highly
11. #commonly
12. #animals
13. #chemical
14. #toxic
15. #milligrams
16. #toxicity
17. #percent