Table 3.

Studies designs

Elksniņš-Finogejevs et al.23	Forogh et al.17	Uslu Güvendi et al.18	Huang et al.24	Jubert et al.19
Single-center prospective randomized controlled study (RCT)	Double-blind, randomized clinical trial	Single-center, prospective, randomized, single-blind study	Prospective, randomized study	Prospective randomized, double-blind, parallel-group, active-controlled study
Naderi Nabi et al.20	Freire et al.21	Khan et al.25	Nunes-Tamashiro et al.22
RCT	A randomized, controlled, longitudinal, double-blind, comparative, descriptive, and analytical study	Randomized control trial	An RCT, with blinded patients and an assessor