Materials, Vol. 9, Pages 752: Expression of Concern: Nanodimensional and Nanocrystalline Apatites and Other Calcium Orthophosphates in Biomedical Engineering, Biology and Medicine. Materials 2009, 2, 1975–2045

We wish to make readers aware that the text in the published paper [1] contains substantial overlap with a previous paper by the same author [2].[...]

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