%0 Journal Article %A M. W. Billinghurst %A M. Groothedde %A R. Palser %T Radiochemical Purity of 99mTc-Pertechnetate %D 1974 %J Journal of Nuclear Medicine %P 266-269 %V 15 %N 4 %U https://jnm.snmjournals.org/content/jnumed/15/4/266.full.pdf