POMC and Cushing syndrome: Stratakis Stratakis C C Cushing syndrome caused by adrenocortical tumors and hyperplasias (corticotropin-independent Cushing syndrome) Cushing syndrome caused by adrenocortical tumors and hyperplasias (corticotropin-independent Cushing syndrome) Endocr Dev Endocr Dev 2008 2008 13 13 117 117 132 132 10.1159/000134829 10.1159/000134829 18493137 18493137