Clinical and genetic heterogeneity, overlap with other tumor syndromes, and atypical glucocorticoid hormone secretion in adrenocorticotropin-independent macronodular adrenal hyperplasia compared with other adrenocortical tumors - Hsiao, H-P; Kirschner, L S; Bourdeau, I (J Clin Endocrinol Metab, 2009)