--- a
+++ b/ndv/valid.txt
@@ -0,0 +1,47 @@
+BraTS19_TCIA01_221_1
+BraTS19_CBICA_AWI_1
+BraTS19_TCIA02_370_1
+BraTS19_TCIA03_375_1
+BraTS19_CBICA_ATV_1
+BraTS19_CBICA_ATF_1
+BraTS19_CBICA_AME_1
+BraTS19_CBICA_BHZ_1
+BraTS19_TCIA01_186_1
+BraTS19_CBICA_ABN_1
+BraTS19_CBICA_AVV_1
+BraTS19_TCIA08_406_1
+BraTS19_TCIA04_343_1
+BraTS19_TCIA02_274_1
+BraTS19_CBICA_BHK_1
+BraTS19_CBICA_ANV_1
+BraTS19_TMC_21360_1
+BraTS19_TMC_27374_1
+BraTS19_TCIA04_437_1
+BraTS19_TCIA02_471_1
+BraTS19_TMC_30014_1
+BraTS19_TCIA06_165_1
+BraTS19_TCIA04_479_1
+BraTS19_TCIA02_118_1
+BraTS19_CBICA_BAX_1
+BraTS19_CBICA_AVB_1
+BraTS19_CBICA_AXJ_1
+BraTS19_TCIA02_208_1
+BraTS19_CBICA_ATX_1
+BraTS19_CBICA_ATN_1
+BraTS19_TCIA02_606_1
+BraTS19_2013_26_1
+BraTS19_CBICA_ASG_1
+BraTS19_CBICA_AWG_1
+BraTS19_TCIA08_218_1
+BraTS19_CBICA_AUR_1
+BraTS19_CBICA_AVG_1
+BraTS19_CBICA_AXO_1
+BraTS19_TCIA02_331_1
+BraTS19_TCIA09_462_1
+BraTS19_TCIA10_299_1
+BraTS19_TCIA13_653_1
+BraTS19_TCIA10_130_1
+BraTS19_2013_15_1
+BraTS19_TCIA10_442_1
+BraTS19_TCIA10_387_1
+BraTS19_2013_9_1
\ No newline at end of file