Increased Levels of Insulin-Like Growth Factor II (IGF-II) and IGF-Binding Protein-2 Are Associated with Malignancy in Sporadic Adrenocortical Tumors<sup>1</sup>Nathalie Boulle, Yves Le Bouc, Laurence Périn et al.|The Journal of Clinical Endocrinology & Metabolism|1998Cited by 158