Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) FLORIN-CHRISTENSEN A,"IgG, IgA, IgM, and IgD anti-globulins in juvenile rheumatoid arthritis",Ann Rheum Dis,,,1974,33,,32-34,https://cir.nii.ac.jp/crid/1572261551364630400,https://doi.org/10.1136/ard.33.1.32