Targeting free prostate-specific antigen for in vivo imaging of prostate cancer using a monoclonal antibody specific for unique epitopes accessible on free prostate-specific antige... Dahkki Evans-Axelsson, S, Ulmert, D, Örbom, A, Peterson, P, Nilsson, O, Wennerberg, J, Strand, J, Wingårdh, K, Olsson, T, Hagman, Z, Tolmachev, V, Bjartell, A, Lilja, H, Strand, SE