RT Journal Article SR Electronic T1 Thallum-201 Single-Proton Emission CT versus CT for the Detection of Recurrent Squamous Cell Carcinoma of the Head and Neck JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1983 OP 1983 VO 22 IS 10 A1 O'Tuama, Lorcan A. A1 Poussaint, Tina Young YR 2001 UL http://www.ajnr.org/content/22/10/1983.1.abstract AB