Authors: COSTA RA ASH KO

Citation: Ra. Costa et Ko. Ash, LABORATORY MANAGEMENT OF EXTRA-ANALYTICAL SERVICE ILLUSTRATED BY SUSPECTED LEAD-POISONING IN A PUBLIC-SCHOOL, Clinical chemistry, 44, 1998, pp. 252-252

Authors: COSTA RA BULLOUGH B ASH KO

Citation: Ra. Costa et al., A REFERENCE INTERVALS FOR TRACE-ELEMENTS BASED ON A NATIONAL-POPULATION SAMPLE, Clinical chemistry, 44, 1998, pp. 725-725

Authors: COSTA RA ASH KO

Citation: Ra. Costa et Ko. Ash, QUANTITATIVE SCAN FOR MULTIPLE TRACE-ELEMENT ANALYSIS BY ICP MS/, Clinical chemistry, 44, 1998, pp. 750-750

Authors: COSTA RA NUTTALL KL SHAFFER JB PETERSON DL ASH KO

Citation: Ra. Costa et al., SUSPECTED LEAD-POISONING IN A PUBLIC-SCHOOL, Annals of clinical and laboratory science, 27(6), 1997, pp. 413-417

Authors: SILVA MG COSTA RA FERRARESE MLL FERRARESEFILHO O

Citation: Mg. Silva et al., EFFECTS OF PHENOLICS COMPOUNDS ON SOYBEAN UREASE ACTIVITY, Arquivos de biologia e tecnologia, 39(3), 1996, pp. 677-683