Chemotherapy in chronic bronchitis. Influence of daily penicillin and tetracycline on exacerbations and their cost
- PMID: 13824401
- PMCID: PMC1966487
- DOI: 10.1136/bmj.1.5169.297
Chemotherapy in chronic bronchitis. Influence of daily penicillin and tetracycline on exacerbations and their cost
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