@article{SinghBlankShoenfeldetal.2008,
  author    = {Anjana Singh and Miri Blank and Yehuda Shoenfeld and Harald Illges},
  title     = {Antiphospholipid syndrome patients display reduced titers of soluble CD21 in their sera irrespective of circulating anti-β2-glycoprotein-I autoantibodies},
  series   = {Rheumatology International},
  volume    = {28},
  number    = {7},
  publisher = {Springer},
  issn      = {0172-8172},
  doi       = {10.1007/s00296-007-0503-6},
  pages     = {661 -- 665},
  year      = {2008},
  language  = {en}
}