TY  - RPRT
TI  - [Chronic pneumonia with a 4-year course].
AU  - N Ortego
AU  - M A López-Ruiz
AU  - E López de Heredia
AU  - A Ruiz
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2490713/
ID  - 2490713
ER  -