title: Author's response to letter to the Editor.
authors.affiliation: Department of Family Medicine, Yonsei University College of Medicine, Gangnam Severance Hospital, Seoul, Republic of Korea; Department of Medicine, Graduate School, Yonsei University, Republic of Korea.
authors.forename: Tae-Ha
authors.initials: TH
authors.lastname: Chung
authors.affiliation: Department of Family Medicine, Yonsei University College of Medicine, Gangnam Severance Hospital, Seoul, Republic of Korea.
authors.forename: Jae-Yong
authors.initials: JY
authors.lastname: Shim
authors.affiliation: Department of Family Medicine, Yonsei University College of Medicine, Gangnam Severance Hospital, Seoul, Republic of Korea. Electronic address: ukyjhome@yuhs.ac.
authors.forename: Yong-Jae
authors.initials: YJ
authors.lastname: Lee
mesh_terms: D005260:Female; D006801:Humans; D007958:Leukocyte Count; D017698:Postmenopause; D055948:Sarcopenia / Q000097:blood* / Q000453:epidemiology*