To study the preventable value of spiral ct volume scanning to the complications of functional endoscopic sinus surgery ( fess ) .
探讨螺旋ct容积扫描对功能性鼻内窥镜手术术后并发症的预防价值。
Financial institutions and others need to fess up to their mistakes by selling or writing down the value of distressed assets they bought with borrowed money . They need to pay off debt . Finally , they need to rebuild their capital cushions , which have been eroded by losses on those distressed assets .