Work related to this thesis has been published as: Curnow SJ, Fairclough M, Schmutz C, Kissane S, Denniston AKO, et al. (2010) Distinct types of fibrocyte can differentiate from mononuclear cells in the presence and absence of serum. PLoS ONE 5(3): e9730. doi:10.1371/journal.pone.0009730 http://eprints.bham.ac.uk/337/