TY  - GEN
AU  - Pascual Leone,A
AU  - Alberola Candel,V
AU  - Marín Pardo,J
AU  - Villar Grimalt,A
AU  - Valdés Ruiz,M
TI  - [Practical problems of early diagnosis of primary malignant tumors of the lung]
SN  - 0014-2565
PY  - 1971///0309
KW  - Aged
KW  - Bronchography
KW  - Humans
KW  - Lung Neoplasms
KW  - diagnosis
KW  - Male
KW  - Middle Aged
KW  - Sputum
KW  - analysis
KW  - Time Factors
N1  - Publication Type: Journal Article
ER  -