Mesenchymal stromal cells are retained in the porcine renal cortex independently of their metabolic state after renal intra-arterial infusion by Sierra-Parraga, JM, Munk, A, Andersen, C, Lohmann, S, Moers, C, Baan, CC, Ploeg, RJ, Pool, M, Keller, AK, Møller, BK, Leuvenink, H, Hoogduijn, MJ, Jespersen, B, Eijken, M