Table 1. Histopathological evaluation of abnormal behavior of Cldn10-positive cells in COPD and IPF lungs.

	Hypercellularity of Cldn10-positive cells in bronchiolar epithelium	Cellular mass in the airspace containing Cldn10-positive cells	Infiltration of Cldn10-positive cells into thickened interstitium
COPD No. 1	−	−	−
COPD No. 2	−	+	−
COPD No. 3	−	−	−
COPD No. 4	−	+	−
COPD No. 5	+	+	−
COPD No. 6	−	−	−
IPF No. 1	+	+	+
IPF No. 2	+	+	+
IPF No. 3	+	+	−
IPF No. 4	+	+	−
IPF No. 5	+	+	−
IPF No. 6	+	+	+

+: One or more fields exhibit the histopathological finding defined at the top of each column

−: No field exhibits the histopathological finding defined at the top of each column