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. 2021 Mar 4;12:643580. doi: 10.3389/fphys.2021.643580

Figure 2.

Figure 2

Periodic acid-Schiff staining of Pectoralis major muscle cross-sections from pHu+ (A,C) vs. pHu− (B,D) at hatching (D0, A,B) and 5 days post-hatching (D5, C,D). Scale bar = 13 μm (A,B) and 25 μm (C,D).