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25. [Photocolorimetric determination of blood urea using the Magalhães Filho method]. de Paula AV, de Castro Filho CF. Hospital (Rio J); 1970 Feb; 77(2):613-9. PubMed ID: 5311386 [No Abstract] [Full Text] [Related]
29. [Organic phosphorus insecticides. III. Enzymatic determination of E 605, potasan, and systox in air]. KEMKA R. Prac Lek; 1956 Aug; 8(4):298-300. PubMed ID: 13389068 [No Abstract] [Full Text] [Related]