@article{GrottenthalerKempisGoldackeretal.2006,
  author    = {Thomas Grottenthaler and Johannes von Kempis and Sigune Goldacker and Harald Illges},
  title     = {Soluble CD21 in sera and synovial fluid of arthritic patients},
  series   = {Rheumatology International},
  volume    = {26},
  number    = {3},
  publisher = {Springer-Verlag},
  issn      = {0172-8172},
  doi       = {10.1007/s00296-004-0541-2},
  pages     = {240 -- 243},
  year      = {2006},
  language  = {en}
}