@conference {Welch2013b,
	title = {Freehand ultrasound calibration: phantom versus tracked pointer},
	booktitle = {SPIE},
	year = {2013},
	month = {02/2013},
	address = {Lake Buena Vista, Florida, United States},
	keywords = {N-Wire Phantom, Tracked Pointer Calibration, Ultrasound Calibration},
	author = {Mattea Welch and Jennifer Andrea and Tamas Ungi and Gabor Fichtinger}
}
