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Стр. 975
The burden of proof of safety has rested primarily on manufacturers , who must present convincing evidence of laboratory testing programs when they wish to market a new chemical . Critics of the system say that one major flaw is that ...
The burden of proof of safety has rested primarily on manufacturers , who must present convincing evidence of laboratory testing programs when they wish to market a new chemical . Critics of the system say that one major flaw is that ...
Стр. 1085
Modern laboratories in suburban Philadelphia near Valley Forge provide ideal working conditions . Please submit your resume in ... A challenging opportunity is available to organize a veterinary research program in a new laboratory .
Modern laboratories in suburban Philadelphia near Valley Forge provide ideal working conditions . Please submit your resume in ... A challenging opportunity is available to organize a veterinary research program in a new laboratory .
Стр. 1332
throw in the towel on old - fashioned lab clean - up LABORATORY TOWELS SORG INTRODUCES THE LABORATORY TOWEL Amazingly absorbent ... less expensive than rental service . LINT - FREE ... cleaner , more sanitary .
throw in the towel on old - fashioned lab clean - up LABORATORY TOWELS SORG INTRODUCES THE LABORATORY TOWEL Amazingly absorbent ... less expensive than rental service . LINT - FREE ... cleaner , more sanitary .
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acid activity American analysis animals antigen appear application Arranged associated behavior biological cause cells chemical complete concentration containing culture Department determined direct discussion drug effects evidence example experience field function given human illus important increase indicate Institute interest laboratory less material means measured mechanism ment methods Michigan natural normal Notes observed obtained organ pattern percent period physical plant plates population position possible prepared present Press problems produced protein range rats recent recorded References relatively response samples Science scientific scientists similar single social specific structure studies suggested Table temperature tion tissue United University values weight York