但重新上色和复印不可避免会同原件产生差异。在19世纪，布雷克和窦加曾用此画法作画。
Subsequent prints invariably differ from the first, because variations in repainting and printing are inevitable. In the 19th century, William Blake and Edgar Degas experimented with the technique.
方法：采用肾窦内肾盂加肾后下段肾实质联合切开取石术治疗复杂性肾结石30例。
Methods:30 cases with complexity renal lithiasis were treated with an incision of the intrarenal sinus and postrenal low segment.
结论：局部麻醉加基础麻醉下行鼻内镜下经鼻腔蝶窦垂体肿瘤切除术简单、安全，且效果好。
Conclusion: Local anesthesia and sedation is a simple, safe and good selection for resection of pituitary neoplasms by endoscopic transnasal sphenoidal approach.
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