Facoetti A, Fallarini S, Miserere S, Bertolotti A, Ferrero I, Tozzi R, Gatti C, Palladini G, Perlini S, Nano R. Histochemical study of cardiac mast cells degranulation and collagen deposition: interaction with the cathecolaminergic system in the rat. Eur J Histochem. 2006;50:133-40