Cocchi, M. A., P. Bezzola, E. Sorbellini, A. Trink, M. Labanca, V. Bonazza, and F. Rinaldi. “Platelet Rich Plasma Stimulates Human Hair Growth in Vitro”. Italian Journal of Anatomy and Embryology, vol. 118, no. 2, Jan. 2014, p. 57, https://oajournals.fupress.net/index.php/ijae/article/view/3530.