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6 gen 1939 anni - Dichloro-diphenyl-trichloroethane (DDT) discovered as antimalarial AND mosquito repellant, 1939 Othmer Zeilder
Aggiunto al nastro di tempo:
22 giu 2018
0
0
331
Malaria
Data:
6 gen 1939 anni
Adesso
~ 85 years ago
