then low oil prices would seem to be a solution. Unfortunately, the problem we are encountering now is extremely low prices. If prices continue at this low level, or go even
because their components were completely different from those that make up living tissues, and (ii) a material that was capable of forming a bone-like hydroxyapatite layer on its surface should not be rejected by the body, as hydroxyapatite is the main mineral phase of natural bone tissue [2...