Method of DNA extraction and application of multiplex polymerase chain reaction to detect toxigenic Vibrio cholerae 01 and 0139 from aquatic ecosystems - Gutierrez Rivera, Irma Nelly; Gil, Ana; Lipp, Erin K.; Choopun, Nipa; Huq, Anwar; Colwell, Rita R. (Environmental Microbiology,, 2003)