Table 1. Staining classification.

Case #	37°C	45°C	60°C	70°C	80°C
1	0	0	++	+	0−
2	0	0	++	++	+−
3	0	0	+	++	NA
4	0	0	++	++	+−
5	0	0	++	++	0−
6	0	0	++	+	NA
7	0	0	+	++	0−
8	0	0	++	+	0−
9	0	0	+	++	+−
10	0	0	++	++	NA

⁺⁺intensively stained;

⁺stained;

⁰unstained;

⁺⁻stained with artefacts;

⁰⁻unstained with artefacts;

^NAnot applicable.