Molecular cloning and characterization of human PDE8B, a novel thyroid-specific isozyme of 3′,5′-cyclic nucleotide phosphodiesterase - Hayashi, M; Matsushima, K; Ohashi, H; Tsunoda, H; Murase, S; Kawarada, Y; Tanaka, T (Biochem Biophys Res Commun, 1998)