No abstract available
MeSH terms
-
Centrifugation, Density Gradient
-
DNA, Circular / analysis
-
DNA, Circular / isolation & purification
-
Enterotoxins / biosynthesis*
-
Enterotoxins / classification
-
Escherichia coli / analysis
-
Escherichia coli / classification
-
Escherichia coli / cytology
-
Escherichia coli / metabolism*
-
Extrachromosomal Inheritance*
-
Genetics, Microbial
-
Microscopy, Electron
Substances
-
DNA, Circular
-
Enterotoxins