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. 2012 Oct 24;12:195. doi: 10.1186/1472-6882-12-195

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Copyright ©2012 Almanaa et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Tumorsphere formation. (A) Anchorage-independent spheres formed from YES-2 cell line after 7 days in stem cell medium. (B) Spheres formed from YES-2S after 2 weeks of cell culture. Scale bar=100 μm.