1 From Coimbra University Hospital Centre (J.L., A.N., C.D., C.J.); Coimbra University (J.L., J.C., C.J.); Institute of Nuclear Sciences Applied to Health/Institute for Biomedical Imaging and Life Sciences (J.C.), Coimbra, Portugal; and Mayo Clinic (E.E.), Jacksonville, FL. merrin72@hotmail.com.
2 From Coimbra University Hospital Centre (J.L., A.N., C.D., C.J.); Coimbra University (J.L., J.C., C.J.); Institute of Nuclear Sciences Applied to Health/Institute for Biomedical Imaging and Life Sciences (J.C.), Coimbra, Portugal; and Mayo Clinic (E.E.), Jacksonville, FL.