Table 2.

Specificity and sensitivity of validated anti-PD-L1 antibodies in FR and FFPE tissues of 30 breast cancer patients.

	E1L3N			28-8
	FR	FFPE	↓Drop	FR	FFPE	↓Drop
♣ R. Sensitivity	67	33	34	89	22	67
R. Specificity	100	100	0	95	100	0

♣ Sensitivity and specificity are relative to MIH1 reactivity in FR sections.