Somatic mutations causing constitutive activity of the thyrotropin receptor are the major cause of hyperfunctioning thyroid adenomas: identification of additional mutations activating both the cyclic adenosine 3’,5’-monophosphate and inositol phosphate-Ca2+-cascades - Parma, J; Van Sande, J; Swillens, S; Tonacchera, M; Dumont, J; Vassart, G (Mol Endocrinol, 1995)