RT Journal Article SR Electronic T1 Atlas of Ultrasound Measurements, 2nd ed. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1201 OP 1202 DO 10.3174/ajnr.A0523 VO 28 IS 6 YR 2007 UL http://www.ajnr.org/content/28/6/1201.abstract AB