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Lipoma in the right atrium
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Huge leiomyosarcoma in the left atrium
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Surface modification of natural and synthetic hydroxyapatites powders by grafting polypyrrole
The modification of hydroxyapatite surface by grafting polypyrrole has been investigated with two hydroxyapatites (HA) powders. One is natural derived from bovine bone, it was prepared by calcination at 750 °C...