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- [41] HEAVY-METALS IN HUMAN SALIVARY CALCULI - DETERMINATION OF CADMIUM, LEAD AND ZINC IN HUMAN SALIVARY CALCULI BY DIRECT SOLID SAMPLING ATOMIC-ABSORPTION SPECTROMETRY USING ZEEMAN EFFECT BACKGROUND CORRECTION FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1987, 328 (4-5): : 382 - 385