Ectopic Adrenocorticotropic Hormone–Secreting Pituitary Adenomas: An Underestimated Entity. Issue 4 (1st April 2017) - Knappe, Ulrich J.; Jaspers, Christian; Buschsieweke, Desirée; Reinbold, Wolf-Dieter; Alomari, Ali; Saeger, Wolfgang; Ehlenz, Klaus; Mann, W. Alexander; Kann, Peter Herbert; Feldkamp, Joachim