TY  - RPRT
TI  - Frameless stereotactic ultrasonography: method and applications.
AU  - J W Trobaugh
AU  - W D Richard
AU  - K R Smith
AU  - R D Bucholz
DO  - 10.1016/0895-6111(94)90048-5
UR  - https://pubmed.ncbi.nlm.nih.gov/7923043/
ID  - 7923043
ER  -