Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Choung Ah Lee and Hae-Dong Jang and Ji Eun Moon and Sangsoo Han,The Relationship between Change of Weight and Chronic Low Back Pain in Population over 50 Years of Age: A Nationwide Cross-Sectional Study,International Journal of Environmental Research and Public Health,1660-4601,MDPI AG,2021-04-09,18,8,3969,https://cir.nii.ac.jp/crid/1360861710168347648,https://doi.org/10.3390/ijerph18083969