Table 2. Sample information for each data set.

TCGA	Samples	classical	follicular	tall cell	other
Metastatic	8
Primary Solid Tumor	493
DFS>=30 days	477	343	99	35
Solid Tissue Normal	58
GSE27155
tumor	51	26	15	10
normal	44
GSE33630
tumor	49	49
normal	45
GSE60542
Lymph node metastasis	23	16	3		4
Normal lymph node	4	3	0		1
Papillary thyroid carcinoma	33	20	6		7
Normal thyroid	30	21	6		3
Pleural metastasis	1	0	0		1
Recurrence	1	1	0		0
GSE6004
primary	7
invasive	7
normal	4