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2. Statistical Methods in Medical Research;Armitage,1987
3. The preparation of a control standard endotoxin to be used in both the gel-clot and chromogenic Limulus amebocyte lysate test;Berzofsky,1987
4. Inhaled endotoxin and decreased spirometric values, an exposure-response relation for cotton dust;Castellan;N. Engl. J. Med.,1987
5. Phosphorous: An outline of Its Chemistry, Biochemistry and Technology;Corbridge,1980