F. Squadrito, A. Bitto, N. Irrera, L. Minutoli, P. Caccia, and D. Altavilla, “Porcine derived relaxin stimulates new vessel formation and improves the disturbed wound healing of the genetically diabetic mice”, Ital J Anat Embryol, vol. 118, no. 1, pp. 66–70, Jan. 2014.