Table 1.

Search terms used in the study

Types of articles searched	Search terms
All types of articles	Dermatology, Japan or China or Korea
Review	Review, Dermatology, Japan or China or Korea
Case report	Case report, Dermatology, Japan or China or Korea
Clinical trial	Clinical trial , dermatology, Japan or China or Korea
Meta-analysis and letter	Meta-analysis, letter, Dermatology, Japan or China or Korea
Randomized controlled trial	Randomized controlled trial, dermatology, Japan or China or Korea