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\bibitem{Vandeputte_etal1990} {\textquotedblleft}\textit{Phosphorus, calcium and lead distribution in collagen in lead induced soft tissue calcification : an ultrastructural and X-ray microanalytical study}{\textquotedblright}. Vandeputte DF, Jacob WA, Van Grieken RE, Matrix \textbf{10}, 33 (1990).   http://doi.org/10.1016/S0934-8832(11)80135-6

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