This problem is eradicated with the Iris Variable Aperture Collimator described by Gernot Echner and colleagues .

Gernot Echner及其同事所描述的鸢尾花型可变孔径准直器可彻底解决这个问题。

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Gernot lives in Cologne, Germany, with his wonderful wife Cheffe Uli and their two children, practices yoga and sometimes (tenor) saxophone.

Gernot与他的妻子Cheffe Uli和两个孩子生活在德国科隆，练瑜加，有时也玩玩萨克斯。

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"Gruenenthal taking on someone like Dr Mueckter is one of the key factors we must highlight in the Thalidomide scandal, " says Gernot Stracke, a leading spokesman for survivors in Germany.

BBC: What's happened to Thalidomide babies?