TY - RPRT TI - A self-correcting method for improving the precision of beam blocks. AU - I A Brezovich AU - K S Sparks AU - J Duan PY - 2001 DO - 10.1120/jacmp.v2i3.2603 UR - https://pubmed.ncbi.nlm.nih.gov/11602006/ ID - 11602006 ER -