title: Response to Letter to the Editor: the use of the term "mesenchymal stem cells" in our article is appropriate based on our laboratory study and the review of the literatures.
authors.affiliation: Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
authors.forename: Y S
authors.initials: YS
authors.lastname: Kim
authors.affiliation: Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
authors.forename: O R
authors.initials: OR
authors.lastname: Kwon
authors.affiliation: Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
authors.forename: D B
authors.initials: DB
authors.lastname: Heo
authors.affiliation: Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea.
authors.forename: D H
authors.initials: DH
authors.lastname: Tak
authors.affiliation: Center for Stem Cell & Arthritis Research, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, Seoul, Republic of Korea. Electronic address: yonggonkoh@gmail.com.
authors.forename: Y G
authors.initials: YG
authors.lastname: Koh
authors.affiliation: Department of Radiology, Yonsei Sarang Hospital, Seoul, Republic of Korea.
authors.forename: S W
authors.initials: SW
authors.lastname: Lee
mesh_terms: D006801:Humans; D045164:Mesenchymal Stem Cell Transplantation; D059630:Mesenchymal Stem Cells