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- lasers 1
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- leaching 3
- lead 1
- Lead 210 2
- lead 210 2
- lead compounds 1
- legislação sobre energia nuclear 1
- Legislation 1
- leishmania 1
- Leishmaniasis 4
- leite 1
- Lenira Santos Passos Ferreira 1
- Lenses 1
- Leonam Guimarães 1
- Leonardo Vilela Ribeiro 1
- Lichen 1
- Licínio Seabra 1
- lifetime 1