Table A2.

Exclusion criteria.

Was the treatment a combination treatment in which two or more treatments other than ultrasound are applied in the same area?	Yes	No	?
Was the device a hand-held device for home use?	Yes	No	?
Was the follow up < 3 months?	Yes	No	?
Was the only indication for treatment other than skin tightening? (pore size, acne, rosacea, etc.)	Yes	No	?
Is the paper a case report, study with participants < 10 or abstract only?	Yes	No	?