TY  - RPRT
TI  - [Study on chronic bronchitis with special reference to rheumatoid factor].
AU  - Y Nishimoto
AU  - S Katsuta
AU  - M Yamakido
AU  - O Nishida
AU  - T Shigenobu
PY  - 1971
DO  - 10.2169/naika.60.721
UR  - https://pubmed.ncbi.nlm.nih.gov/5106226/
ID  - 5106226
ER  -