@misc{indiciaed5520c4dcbf3,
  title = {Disease activity score.},
  author = {D M van der Heijde and M A van't Hof and P L van Riel and L Van de Putte},
  year = {1992},
  url = {https://pubmed.ncbi.nlm.nih.gov/1540024/},
  note = {Source identifier: 1540024}
}