Amazingly bone graft granules seem to stick to each other (semi sticky bone (Fig.2), as compared to PRF). 异体骨与现成血小板因子（GEM21S，$250）混合植入（图二：类似粘性骨粉）。

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Xin Wei, DDS, PhD, MS 1st edition 03/12/2020, last revision 01/21/2021