TY  - RPRT
TI  - Frameless patient registration using ultrasonic imaging: a preliminary study.
AU  - T Ault
AU  - M W Siegel
PY  - 1995
DO  - 10.1002/(sici)1522-712x(1995)1:2<94::aid-igs4>3.0.co;2-g
UR  - https://pubmed.ncbi.nlm.nih.gov/9079433/
ID  - 9079433
ER  -