TY  - RPRT
TI  - Backflow in retrograde pyelography.
AU  - J A ROSS
PY  - 1953
DO  - 10.1016/s0140-6736(53)90498-x
UR  - https://pubmed.ncbi.nlm.nih.gov/13098098/
ID  - 13098098
ER  -