TY  - RPRT
TI  - Ionic- vs- nonionic contrast agents.
AU  - M J Kern
AU  - F V Aguirre
PY  - 1991
DO  - 10.1002/ccd.1810240120
UR  - https://pubmed.ncbi.nlm.nih.gov/1913799/
ID  - 1913799
ER  -