Conclusion LASIK is scatheless to cornea endothelial cells, and can't bring modality change and density decrease.

结论L ASIK手术对角膜内皮细胞无损伤，不会造成角膜中央部内皮细胞形态改变和密度降低。

DWI and ADC values are secure scatheless, accurate, and quickly methods to judge the lymph node either metastasis or hyperplasia.

DWI和ADC值测量是一种安全、无创、准确、快速的诊断腋窝转移性淋巴结和良性反应增生性淋巴结的手段。

Uroflowmetry testing is a great value in the diagnosis of urination disorders. It can impersonally display the function of emiction and has some good characters such as scatheless and handy.

尿流率检查对下尿路排尿障碍等疾病的诊断具有重要的参考价值，其可以客观的反映下尿路排尿功能的一般水平。