https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3780531/
The long answer is that according to Table 1 of your source, there are four frequencies that affect VGCC:
1) Static fields (i.e. DC, 0 Hz)
2) 50/60 Hz (wall-socket frequency)
3) 700-1100 MHz (cell-phone frequencies)
4) ~1 GHz (authors call it "nanosecond pulse")
These are all well below the "controversial" 5G frequencies, and even below Wi-Fi frequencies.
The long answer is that according to Table 1 of your source, there are four frequencies that affect VGCC:
1) Static fields (i.e. DC, 0 Hz)
2) 50/60 Hz (wall-socket frequency)
3) 700-1100 MHz (cell-phone frequencies)
4) ~1 GHz (authors call it "nanosecond pulse")
These are all well below the "controversial" 5G frequencies, and even below Wi-Fi frequencies.