Tolonen, J., Grönblad, M., Vanharanta, H., Virri, J., Guyer, R. D., Rytömaa, T., & Karaharju, E. O. (2005). Growth factor expression in degenerated intervertebral disc tissue: An immunohistochemical analysis of transforming growth factor beta, fibroblast growth factor and platelet-derived growth factor. Springer-Verlag.

Tolonen, Jukka, Mats Grönblad, Heikki Vanharanta, Johanna Virri, Richard D. Guyer, Tapio Rytömaa, e Erkki O. Karaharju. Growth Factor Expression in Degenerated Intervertebral Disc Tissue: An Immunohistochemical Analysis of Transforming Growth Factor Beta, Fibroblast Growth Factor and Platelet-derived Growth Factor. Springer-Verlag, 2005.

Tolonen, Jukka, et al. Growth Factor Expression in Degenerated Intervertebral Disc Tissue: An Immunohistochemical Analysis of Transforming Growth Factor Beta, Fibroblast Growth Factor and Platelet-derived Growth Factor. Springer-Verlag, 2005.