PT - JOURNAL ARTICLE AU - Medina, L. Santiago TI - Study Design and Analysis in Neuroradiology: A Practical Approach DP - 1999 Oct 01 TA - American Journal of Neuroradiology PG - 1584--1596 VI - 20 IP - 9 4099 - http://www.ajnr.org/content/20/9/1584.short 4100 - http://www.ajnr.org/content/20/9/1584.full SO - Am. J. Neuroradiol.1999 Oct 01; 20