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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Spine J. 2021 Mar 5;21(7):1205–1216. doi: 10.1016/j.spinee.2021.03.002

Figure 4. ALK3 expression does not significantly change in human degenerated discs.

Figure 4.

Figure 4.

(a) Staining revealed positive cell cluster formation in the degenerative specimens. (b) ALK3 expression was not significantly different in the degenerative discs as compared to the control specimens.