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. 2008 Dec 18;9(12):2658–2723. doi: 10.3390/ijms9122658

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© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Model-simulation of the four-step release in Figure 20a. The approximative Z-filament twisting stages are indicated. For more details see text.