TY  - RPRT
TI  - [Percutaneous nephrolithotomy. The 1st steps].
AU  - Kh Kumanov
AU  - P Panchev
AU  - D Petkov
PY  - 1985
UR  - https://pubmed.ncbi.nlm.nih.gov/4079276/
ID  - 4079276
ER  -