Homozygous C4A deficiency in systemic lupus erythematosus: analysis of patients from a defined population.

@article{Sturfelt1990HomozygousCD,
  title={Homozygous C4A deficiency in systemic lupus erythematosus: analysis of patients from a defined population.},
  author={Gunnar K Sturfelt and Lennart Truedsson and P{\aa}l Johansen and Helgi P{\'a}ll J{\'o}nsson and Ola Nived and Anders G. Sj{\"o}holm},
  journal={Clinical genetics},
  year={1990},
  volume={38 6},
  pages={427-33}
}
Homozygous C4A deficiency was found at a prevalence of 16% (13/80 patients) in systemic lupus erythematosus (SLE). The patients represented all diagnosed cases retrieved from a defined population in Southern Sweden, which minimizes the influence of patient selection. Photosensitivity was more common among C4A-deficient patients than among other SLE patients… CONTINUE READING