TABLE 3.

Electron microscope study of unmyelinated C fibres

Patients	1	2	3	4	5	6	7	8	9	10
Number of samples* with C fibres	2	2	3	3	1	2	2	2	0	0
Inside the intima	0	0	0	0	0	0	0	0	–	–
Inside the adventitia	1	0	1	1	1	1	1	1	–	–
Inside the media	1	2	3	2	0	2	1	1	–	–
Close to SMCs	0	0	0	0	0	1	0	0	–	–
Close to elastic fibres	0	0	0	0	0	0	0	0	–	–

^*Five samples observed for each patient. SMCs Smooth muscle cells