[en] In the 1970's the MIRD Committee published several pamphlets with data necessary for estimating absorbed dose from radiopharmaceutical in adults: specific absorbed fractions (Φ's) for photons (No. 5, Revised, 1978), decay schemes for radionuclides (No. 10, 1975), and S-factors (No. 11, 1975). Recently the MIRD Committee has published newer data for decay schemes (Weber et al. 1989); we have published Φ's for photons for infants, children, an adult female, and a revised adult male (1987); and we have also developed a new computer program, SEEAGE, to calculate S-factors (or specific effective energies, SEE) for the various age groups, which will be made available to the radiation protection community in 1990. The newer Φ-values include realistic estimates of dose to endosteal cells in the skeleton, the tissue at risk for bone cancer, and better estimates of dose to the hematopoietically active marrow. SEEAGE incorporates the newer Φ's, newer decay schemes, and also better dosimetry for beta-emitters in bone