TY - JOUR T1 - Would Our Treatment Decisions Be Better Justified in the Absence of Observational Data? JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - E180 LP - E180 DO - 10.3174/ajnr.A2755 VL - 32 IS - 9 AU - A. Laakso AU - M. Niemelä AU - J. Hernesniemi Y1 - 2011/10/01 UR - http://www.ajnr.org/content/32/9/E180.abstract N2 - ER -