TY - GEN AU - Groth,M J AU - MacFarlane,D J AU - Khafagi,F A TI - The validity of the geometric mean method for estimating internal activities in nuclear medicine SN - 0158-9938 PY - 1993///0923 KW - Humans KW - Mathematics KW - Radiometry KW - Technetium N1 - Publication Type: Journal Article ER -