title: A double-blind cross-over trial of trimethoprim and sulphamethoxazole in chronic bronchitis.
mesh_terms: D001991:Bronchitis / Q000188:drug therapy* / Q000503:physiopathology; D002245:Carbon Dioxide / Q000097:blood; D002986:Clinical Trials as Topic; D004357:Drug Synergism; D005493:Folic Acid Antagonists / Q000009:adverse effects / Q000627:therapeutic use*; D006193:Haemophilus influenzae / Q000302:isolation & purification; D006801:Humans; D007709:Klebsiella / Q000302:isolation & purification; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011743:Pyrimidines / Q000627:therapeutic use*; D012871:Skin Diseases / Q000139:chemically induced; D013147:Spirometry; D013183:Sputum / Q000382:microbiology; D013291:Streptococcus / Q000302:isolation & purification; D013420:Sulfamethoxazole / Q000627:therapeutic use*
chemical_list: D005493:Folic Acid Antagonists; D011743:Pyrimidines; D002245:Carbon Dioxide; D013420:Sulfamethoxazole; D010100:Oxygen