TY - RPRT TI - Novel bioactive materials with different mechanical properties. AU - Tadashi Kokubo AU - Hyun-Min Kim AU - Masakazu Kawashita PY - 2003 DO - 10.1016/s0142-9612(03)00044-9 UR - https://pubmed.ncbi.nlm.nih.gov/12699652/ ID - 12699652 ER -