TY  - RPRT
TI  - Ultrasonically guided percutaneous pyeloscopy.
AU  - M Saitoh
AU  - H Watanabe
PY  - 1981
DO  - 10.1016/0090-4295(81)90189-8
UR  - https://pubmed.ncbi.nlm.nih.gov/7233659/
ID  - 7233659
ER  -