TY - VIDEO AU - Portal, G AU - Cross, W AU - Dietze, G. AU - Harvey, J AU - Schwartz, R C2 - ICRU Report 47 DA - 1992-01-01 LA - en PB - ICRU Report 47 PY - 1992 TI - Measurement of Dose Equivalents from External Photon and Electron Radiations ER -