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| Bacillus thuringiensis kurstaki (2) |
| Chimerical protein Cry(4Ba-1Ac) (2) |
| Toxicity improvement to Culex pipiens (2) |
| Bacillus thuringiensis kurstaki (2) |
| Chimerical protein Cry(4Ba-1Ac) (2) |
| Toxicity improvement to Culex pipiens (2) |