@article {Ungi2011c,
	title = {Perk Station image overlay improves training of facet joint injections},
	volume = {4},
	year = {2011},
	month = {10/2011},
	pages = {118},
	address = {Arlington VA, October 12-13, 2011},
	author = {Tamas Ungi and Paweena U-Thainual and Yeo, Caitlin T and Andras Lasso and McGraw, Robert C and Gabor Fichtinger}
}
