PT  - JOURNAL ARTICLE
AU  - Helpern, Joseph A.
TI  - The Missing Element
DP  - 2001 Aug 01
TA  - American Journal of Neuroradiology
PG  - 1235--1236
VI  - 22
IP  - 7
4099  - http://www.ajnr.org/content/22/7/1235.short
4100  - http://www.ajnr.org/content/22/7/1235.full
SO  - Am. J. Neuroradiol.2001 Aug 01; 22