Transsphenoidal pituitary surgery for the treatment of Cushing’s disease: Results in 64 patients and long term follow-up studies - Guilhaume, B; Bertagna, X; Thomsen, M; Bricairec, C; Vila-Porcile, E; Olivier, L; Racadot, J; Lautat, M H; Girard, F; Bricaire, H; Luton, J P (J Clin Endocrinol Metab, 1988)