title: Using social media.
authors.affiliation: Primary Health Unit, Shantou Medical Center.
authors.forename: Sim Sai
authors.initials: SS
authors.lastname: Tin
authors.affiliation: Tropical Disease Center, Hainan Medical University, Haikou City, China.
authors.forename: Viroj
authors.initials: V
authors.lastname: Wiwanitkit
mesh_terms: D001416:Back Pain / Q000503:physiopathology*; D004433:Earache / Q000503:physiopathology*; D005260:Female; D006261:Headache / Q000503:physiopathology*; D006801:Humans; D008297:Male; D057566:Self Report; D061108:Social Media; D014098:Toothache / Q000503:physiopathology*