99mTc-Labeled Nanobodies: A New Type of Targeted Probes for Imaging Antigen Expression, Cortez-Retamozo, Virna, Lahoutte Tony, Caveliers V, Tchouate Gainkam Lea, Hernot Sophie, Packeu Ann, De Vos F, Vanhove Chris, Muyldermans Serge, De Baetselier P, et al. , Current Radiopharmaceuticalse, Jan-01-2008, Volume 1, Issue 1, (2008)