Spironolactone interference in the immunoassay of androstenedione in a patient with a cortisol secreting adrenal adenoma. (16th December 2013) - Crowley, Rachel K.; Broderick, Deirdre; O'Shea, Triona; Boran, Gerard; Maher, Vincent; Crowther, Stephen; Gibney, James; Conlon, Kevin C.; Sherlock, Mark