@misc{indiciaef81c1b532b84,
  title = {[Study on chronic bronchitis with special reference to rheumatoid factor].},
  author = {Y Nishimoto and S Katsuta and M Yamakido and O Nishida and T Shigenobu},
  year = {1971},
  doi = {10.2169/naika.60.721},
  url = {https://pubmed.ncbi.nlm.nih.gov/5106226/},
  note = {Source identifier: 5106226}
}