title: Authors' reply.
authors.forename: Cheng-Loong
authors.initials: CL
authors.lastname: Liang
authors.forename: Hao-Kwan
authors.initials: HK
authors.lastname: Wang
authors.forename: Fei-Kai
authors.initials: FK
authors.lastname: Syu
authors.forename: Kuo-Wei
authors.initials: KW
authors.lastname: Wang
authors.forename: Kang
authors.initials: K
authors.lastname: Lu
authors.forename: Po-Chou
authors.initials: PC
authors.lastname: Liliang
mesh_terms: D005260:Female; D050815:Fractures, Compression / Q000601:surgery*; D006801:Humans; D008297:Male; D016103:Spinal Fractures / Q000601:surgery*; D054854:Vertebroplasty / Q000706:statistics & numerical data*