“，”偿付一个退单。“
当信用卡持有者联系银行或者信用卡公司以阻止一笔账户付款时，退单拒付即产生。
A chargeback occurs when a credit card holder contacts his bank or credit card company to dispute a charge on his account.
只有极少的在线转账能够在开始威胁到提供在线支付的经济模型之前得到退单支付。
An infinitesimally small fraction of online transactions can result in chargebacks before they begin to threaten the economic model of providing online payments.
如果你选择提出退单拒付，这个程序从退单拒付的日期起通常会花费45天才能完成。
If you choose to challenge the chargeback, the process typically takes about 45 days from the date of the chargeback.
目的探讨单侧经椎间孔腰椎间融合术(TLIF)在退变性腰椎疾病的应用。
Objective To study the application value of TLIF in the management of degenerative disorders of the lumbar spine.
结论：单节段腰椎固定融合术后上位相邻节段影像学退变与临床效果之间无显著相关性。
Conclusion:After single-segment instrumented fusion, there is no significant correlation between the radiologic degeneration of cranial adjacent segment and its clinical results.
方法：对2002年3月至2003年2月的退药申请单，分析退药原因。
Methods: Analyze reasons of applications since March 2002 to February 2003.
方法：对2002年3月至2003年2月的退药申请单，分析退药原因。
Methods: Analyze reasons of applications since March 2002 to February 2003.
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