A paper using this method has been published:
P.E., L.K. Johnson, S.T. Zimmerley, and M.J. Sadowsky.
2000. Use of repetitive DNA sequences and the PCR to differentiate
Escherichia coli isolates from human and animal sources.
Appl. Environ. Microbiol. 66:2572-2577.
Note: The current protocol has been changed since our
publication. We now use whole cells from single colonies grown
on agar plates (see methods)