Erratum to: Betulin suppressed interleukin-1b-induced gene expression, secretion and proteolytic activity of matrix metalloproteinase in cultured articular chondrocytes and production of matrix metalloproteinase in the knee joint of rat

Korean J Physiol Pharmacol 2017;21(1):19-26

https://doi.org/10.4196/kjpp.2017.21.1.19

Due to an oversight of the editorial team, the original version of this article contained an error in the list of authors. Hyun Jae Lee^2,# was incorrectly printed as the co-first author in the original byline. Hyun Jae Lee² is given as one of the coauthors and removed from the list of co-first author, and Ho Jong Ra¹ is the correct first author.

The correct list of authors, with the true first author, is provided below:

Ho Jong Ra¹, Hyun Jae Lee², Ho Seung Jo³, Dae Cheol Nam³, Young Bok Lee³, Byeong Hun Kang³, Dong Kyu Moon³, Dong Hee Kim³, Choong Jae Lee^4,*, and Sun-Chul Hwang^3,*

¹Department of Orthopedic Surgery, Gangneung Asan Hospital, College of Medicine, University of Ulsan, Gangneung 25440, ²Department of Health Management, Sahmyook University, Seoul 01795, ³Department of Orthopedic Surgery and Institute of Health Sciences, School of Medicine and Hospital, Gyeongsang National University, Jinju 52727 and ⁴Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Korea