Botti, M., Gazza, F., Ragionieri, L., Bo Minelli, L. and Panu, R. (2013) “Double labelling immunohistochemistry on the sympathetic trunk ganglia neurons projecting to the extrinsic penile smooth musculature of the pig: an experimental study on the retractor penis muscle”, Italian Journal of Anatomy and Embryology, 118(2), pp. 223–239. Available at: (Accessed: 21 July 2024).