The use of sulfur dioxide as a diagnostic aid in pulmonary cancer; preliminary report.
D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D013183:Sputum; D013455:Sulfur; D013458:Sulfur Dioxide
D013458:Sulfur Dioxide; D013455:Sulfur
LUNG NEOPLASMS/diagnosis; SPUTUM; SULFUR