@misc{indiciaed1ad86828c1b,
  title = {[Progressive systemic sclerosis. A diagnostic problem].},
  author = {M Posada de la Paz and J Martínez L de Letona and C Masa Vázquez and J Ruiz Galiana and R Pérez Alvarez and F Díez García and R Pérez Maestu},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6361922/},
  note = {Source identifier: 6361922}
}