Table 1. The comparison of dorsal column mapping methods

	Quinones-Hinojosa’s method [18]	Yanni’s method [19]	Simon’s method [20]
Direction	Antidromic	Orthodromic	Orthodromic
Stimulation location	Spinal cord	Peripheral nerve	Spinal cord
Recording location	Malleolus	Spinal cord	Cortex
Simulation intensity	3 mA	40 mA	0.2 mA
Stimulation duration	200 μs	200 μs	300 μs
Stimulation frequency	9.1 Hz	13.3 Hz	3.17 Hz