Combination of 13-Cis retinoic acid and lovastatin: marked antitumor potential in vivo in a pheochromocytoma allograft model in female athymic nude mice. by Nölting, S, Giubellino, A, Tayem, Y, Young, K, Lauseker, M, Bullova, P, Schovanek, J, Anver, M, Fliedner, S, Korbonits, M, Göke, B, Vlotides, G, Grossman, A, Pacak, K