Objective: To study the relation between gingival blood flow (GBF), blood current velocity (BCV), blood concentration (BC) in gingival and periodontal diseases.

目的：探讨牙龈血流量(GBF)、血流速度(BCV)和血浓度(BC)与牙周病的关系。

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BCV's objectives price stability and the maintenance of the value of the currency.

ECONOMIST: Reserve money for the revolution