TY - RPRT TI - Force modeling for needle insertion into soft tissue. AU - Allison M Okamura AU - Christina Simone AU - Mark D O'Leary PY - 2004 DO - 10.1109/tbme.2004.831542 UR - https://pubmed.ncbi.nlm.nih.gov/15490818/ ID - 15490818 ER -