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Author: WikiMatrix
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English[en]
He compared the lead, barium, and calcium levels in 1600-year-old Peruvian skeletons and showed a 700- to 1200-fold increase in lead levels in modern human bones, with no comparable changes in the barium and calcium levels.
Indonesian[id]
Ia meneliti kandungan timbal, barium, dan kalsium di kerangka manusia Peru berusia 1.600 tahun dan membuktikan adanya peningkatan kandungan timbal sebanyak 700 sampai 1.200 kali lipat pada kerangka manusia modern.