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. 2021 Jul 3;19:197. doi: 10.1186/s12951-021-00945-x

Fig. 6.

Fig. 6

The macroscopic observation (a) and macroscopic score (b) of cartilage after IA-injection with Saline, FMN, and PCFMN for 4 and 8 weeks. (Values are the means ± SD, n = 5; # indicates P < 0.05, ** indicates P < 0.01, ***, ### indicates P < 0.001. * is the statistical difference between the FMN, PCFMN group and the saline group, and # is the statistical difference between the FMN and PCFMN group.)