Genetic studies in a coexistence of acromegaly, pheochromocytoma, gastrointestinal stromal tumor (GIST) and thyroid follicular adenoma - Boguszewski, C L; Fighera, T M; Bornschein, A; Marques, F M; Dénes, J; Rattenbery, E; Maher, E R; Stals, K; Ellard, S; Korbonits, M (Arq Bras Endocrinol Metabol, 2012)