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. 2021 May 31;7:115. doi: 10.1186/s40814-021-00859-3

Table 4.

Adverse effects

Adverse effects/patients 1 2 3 4 5 6 Total effects reported
Tingling x x x x 4
Skin redness x x x 3
Burning sensation x 1
Headache x 1
Fatigue x 1
Itching 0
Scalp pain 0
Neck pain 0
Sleepiness 0
Trouble concentrating 0
Acute mood change 0