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. 2019 Apr 30;14:3043–3054. doi: 10.2147/IJN.S198583

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© 2019 Shen et al.

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(A) Representative scratch track image of NT and NP; (B) statistics of critical loads of cohesion (Lc1), adhesion (Lc2) and breakthrough (Lc3). Error bars represent mean±SD for n=4, *p<0.05.