@article {Ungi2012c,
	title = {Perk Tutor: An open-source training platform for ultrasound-guided needle insertions},
	journal = {IEEE Trans Biomed Eng},
	volume = {59},
	year = {2012},
	month = {12/2012},
	pages = {3475-3481},
	issn = {0018-9294},
	doi = {10.1109/TBME.2012.2219307},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6304910},
	author = {Tamas Ungi and Sargent, D. and Eric Moult and Andras Lasso and Csaba Pinter and McGraw, Robert C and Gabor Fichtinger}
}
