Can initial prostate specific antigen determinations eliminate the need for bone scans in patients with newly diagnosed prostate carzinoma? A multicenter retrospective study in Japan. - Kosuda,S.; Yoshimura,I.; Aizawa,T.; Koizumi,K.; Akakura,K.; Kuyama,J.; Ichihara,K.; Yonese,J.; Koizumi,M.; Nakashima,J.; Fujii,H. (Cancer, 2002)