International Circulation: In order to overcome complications， does it need more people， more practice in other countries?
　　Dr. Kinoshita: Of course， practice is important. However， it may be difficult to get appropriate wire manipulation by oneself， actually. Many companies have demonstration kits. Depending on my experience with these kits， I found there is a large discrepancy between the demonstration kit and the clinical， physical experience. Drs. Suzuki and Katoh are attempting to train the next generation of doctors and most doctors can reach a certain level using the proper technology. But using various devices will adequately take some time. In addition， mastering CTO retrograde approach may require instinct and a special sense. That is difficult to acquire.
　　《国际循环》：为了减少并发症，日本以外其他国家的术者是否需要更多的临床实践？
　　Kinoshita教授：当然，临床实践是重要的。但部分术者自身可能很难掌握合适的钢丝操作。很多公司有演示工具包。据我使用这些演示工具包的经验，我发现演示工具包和临床经验之前有很大的差距。Suzuki和Katoh正在尝试训练下一代医生，很多医生应用合适的技术能够达到一定的操作水平。但是，熟练使用不同的设备需要一定时间。另外，精通CTO逆向技术需要清晰的、特别的感觉，有一定难度。