| http://www.w3.org/ns/prov#value | - In the United States, government agencies and states such as California and Washington have defined a decrease in BChE of 20% as the criterion for verifying protection measures and reevaluating workers and a decrease of 40% as the criterion for stopping the exposure until the measurements have returned to normal values.3 The Extoxnet network of American universities has indicated that the exposure
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