[1]
K. Y. Chung, K.-S. Kim, M. G. Lee, N. S. Chang, and J. B. Lee, “Treponema pallidum induces up-regulation of interstitial collagenase in human dermal fibroblasts”, Acta Derm Venereol, vol. 82, no. 3, pp. 174–178, Oct. 2002.