@article {Ungi2012b,
	title = {Spinal Needle Navigation by Tracked Ultrasound Snapshots},
	journal = {IEEE Trans Biomed Eng},
	volume = {59},
	year = {2012},
	month = {10/2012},
	pages = {2766-2772},
	author = {Tamas Ungi and Purang Abolmaesumi and Rayhan Jalal and Mattea Welch and Irene Ayukawa and Simrin Nagpal and Andras Lasso and Melanie Jaeger and Daniel P. Borschneck and Gabor Fichtinger and Parvin Mousavi}
}
