Perfusion defects on thallium-201 scintigraphy in cardiac amyloidosis. - Hung YH; Yu AL; Ko CL; Chen YC; Su MY; Shun CT; Chao CC; Hsieh ST; Tseng PH; Lee MJ; Hsueh HW; Juang JJ; et al. (Journal of investigative medicine : the official publication of the American Federation for Clinical Research, 2026)