Figure 2.
Applied current waveform and corresponding frequency distribution. The current waveform used in this study was bipolar (10 Hz) and had an amplitude of 1.5 mA.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.