Prostate - specific antigen ( PSA ) is a well characterized human prostate specific glycoprotein.摘要前列腺特定抗原 ( PSA ) 为一已经定性清楚之人类前到腺特定醣蛋白.Purpose : To study antigenic epitopes and expression of P glycoprotein.目的: 研究P糖蛋白抗原表位...
The soldiers were ordered to retreat to safer positions behind the lines.士兵们奉命撤退到后方较为安全的阵地上去.They infiltrated behind the lines so as to annoy the emery replacements.他们渗透敌后以便骚扰敌军的调度....