@article {Moult2013a,
	title = {Ultrasound-guided facet joint injection training using Perk Tutor},
	journal = {International Journal of Computer Assisted Radiology and Surgery},
	volume = {8},
	year = {2013},
	month = {09/2013},
	pages = {831-6},
	doi = {10.1007/s11548-012-0811-5},
	url = {http://link.springer.com/article/10.1007\%2Fs11548-012-0811-5},
	author = {Eric Moult and Tamas Ungi and Mattea Welch and J. Lu and McGraw, Robert C and Gabor Fichtinger}
}
