@misc{indiciae71c940a1ac8f,
  title = {External quality assessment programs in Norway 1976-1982.},
  author = {L Theodorsen and P Bjørnstad and S Skrede},
  year = {1984},
  url = {https://pubmed.ncbi.nlm.nih.gov/6599520/},
  note = {Source identifier: 6599520}
}