PT - JOURNAL ARTICLE AU - I. Ikuta 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 Jul 02 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2020/07/02/ajnr.A6676.1.short 4100 - http://www.ajnr.org/content/early/2020/07/02/ajnr.A6676.1.full