PT - JOURNAL ARTICLE AU - Ikuta, I. TI - Level of Evidence during the COVID-19 Pandemic: Making the Case for Case Series and Case Reports AID - 10.3174/ajnr.A6676 DP - 2020 Sep 01 TA - American Journal of Neuroradiology PG - 1646--1646 VI - 41 IP - 9 4099 - http://www.ajnr.org/content/41/9/1646.short 4100 - http://www.ajnr.org/content/41/9/1646.full SO - Am. J. Neuroradiol.2020 Sep 01; 41