TY  - RPRT
TI  - Step-down technique.
AU  - Abhay R Vasavada
AU  - Shetal Raj
PY  - 2003
DO  - 10.1016/s0886-3350(03)00121-4
UR  - https://pubmed.ncbi.nlm.nih.gov/12842670/
ID  - 12842670
ER  -