TY - GEN AU - BECKER,J AU - SCHEER,K E AU - SCHICK,E TI - [Radiocobalt pearls; use of open or closed preparations] SN - 0039-2073 PY - 2002///0501 KW - Cobalt KW - Cobalt Radioisotopes KW - Humans N1 - Publication Type: Journal Article ER -