下面部脂肪室在老化过程中变化趋势不同，下面部年轻化方案应针对脂肪室具体变化综合评估，并掌握下面部血管神经解剖，提高临床应用安全......

Aim: An ideal injectable material would be biocompatible with long-lasting effects. The relative polymerization and chai......