TY - GEN AU - Khan,F M TI - Use of electron filter to reduce skin dose in cobalt teletherapy SN - 0002-9580 PY - 1971///0320 KW - Cobalt Isotopes KW - administration & dosage N1 - Publication Type: Journal Article UR - https://doi.org/10.2214/ajr.111.1.180 ER -