Table 1.

Distribution of CA IX in mouse embryonic tissues of different age.*

Organ	E11.5	E12.5	E13.5
Brain	++	++	++
Heart (ventricle/atrium)	+/++	++/++	+/++
Lung	ND	++	+
Kidney	-	+	+
Pancreas	ND	++	ND
Liver	+	++	++
Stomach	+	+	+
Intestine	+	++	+

* Scores in immunohistochemistry: strong reaction (+++), moderate reaction (++), weak reaction (+), no reaction (-), not done (ND).