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lowest observed effect level
chem.	dose minimale avec effet observé
health., environ., anim.husb.	dose entraînant l'effet observé le plus faible
lowest-observed-effect level concentration
health.	dose concentration la plus faible entraînant l'effet observé; dose/concentration entraînant l'effet observé le plus faible

lowest observed effect level: 5 phrases in 4 subjects

Chemistry	1
General	1
Health care	2
Pest control	1