[EPIDEMIOLOGICAL STUDY ON THE TRANSMISSIBLE DRUG-RESISTANCE R FACTOR].
D002701:Chloramphenicol; D004351:Drug Resistance; D004352:Drug Resistance, Microbial; D016021:Epidemiologic Studies; D010600:Pharmacology; D011815:R Factors; D012106:Research; D012760:Shigella; D013307:Streptomycin; D000077145:Sulfanilamide; D013424:Sulfanilamides; D013752:Tetracycline
D013424:Sulfanilamides; D000077145:Sulfanilamide; D002701:Chloramphenicol; D013752:Tetracycline; D013307:Streptomycin
CHLORAMPHENICOL; DRUG RESISTANCE, MICROBIAL; EXPERIMENTAL LAB STUDY; PHARMACOLOGY; SHIGELLA; STREPTOMYCIN; SULFANILAMIDE; TETRACYCLINE