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. 2021 Apr 6;6:48. doi: 10.1038/s41541-021-00310-x

Fig. 4. Calcium and magnesium partially rescued NA activity in vitro of N1 and N2 stored at −80 °C or 4 °C in PBS.

Fig. 4

N1 and N2 stored at −80 °C or 4 °C in PBS or DPBS for 36 weeks. PBS samples were rescued with DPBS and log2-transformed NA activities of NAV PBS, NAV rescue, and NAV DPBS samples were compared. Bars represent individual samples.