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(A) Cal-AM staining of SMCs on the various samples surface at 4 h, 1 and 3 days. (B) The count analysis and (C) the results of CCK-8 of SMCs on SS, PCU40, PCU31, PCU22, PCU13 and PCU04 (*P < 0.05, **P < 0.01, ***P < 0.001, mean ± SD, N = 5)
