TY - RPRT TI - Age-dependent protection quantities for external photon irradiation. AU - D P Chou AU - J N Wang AU - I J Chen PY - 2001 DO - 10.1093/oxfordjournals.rpd.a006544 UR - https://pubmed.ncbi.nlm.nih.gov/11605795/ ID - 11605795 ER -