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. 2017 Jun 23;96(25):e7178. doi: 10.1097/MD.0000000000007178

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Copyright © 2017 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution-Share Alike License 4.0, which allows others to remix, tweak, and build upon the work, even for commercial purposes, as long as the author is credited and the new creations are licensed under the identical terms. http://creativecommons.org/licenses/by-sa/4.0

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Different staining results of 3 kinds of stem cells in human intervertebral disc A1: alizarin red S staining of NPSCs, A2: toluidine blue staining of NPSCs, A3: oil red staining of NPSCs; B1: alizarin red S staining of AFSCs, B2: toluidine blue staining of AFSCs, B3: oil red staining of AFSCs; C1: alizarin red S staining of CESCs, C2: toluidine blue staining of CESCs, C3: oil red staining of CESCs. AFSCs = annulus fibrosus-derived stem cells, CESCs = cartilage endplate-derived stem cells, NPSCs = nucleus pulposus-derived stem cells.