Table 3. Co-localization of neuronal marker proteins using immunofluorescence^a,b.

Marker 1	Marker 2	Marker 1+/ Marker 2+	Marker 1+/ Marker 2–	Marker 1–/ Marker 2+	Marker 1–/ Marker 2–	pc
Ret	nNOS	4.5%	23%	16.63%	55.88%	0.042*
Ret	CGRP	15.75%	19.13%	16.88%	48.25%	<0.01*
TrkA	Ret	8.38%	34.75%	15%	41.88%	0.021*
TrkA	nNOS	10%	35.88%	14.5%	39.63%	0.102
TrkA	RT97	20.13%	25.25%	19.63%	35%	0.015*
nNOS	RT97	9.25%	17.75%	27%	46%	0.476

a: see Supplementary Table S4 for median and interquartile ranges

b: 800 neurons were counted per marker pair.

c: p-value as calculated by the Pearson Chi-squared test, with p<0.05 taken as significant, shown by an asterisk.