Six self-contieneed units de un simple organismos
LYFO DISK™ Bacteroides fragilis derived from NCTC 9343
KWIK-STIK™ Bacteroides fragilis derived from ATCC® 23745™
KWIK-STIK™ Bacteroides fragilis derived from ATCC® 25285™
KWIK-STIK™ Bacteroides ovatus derived from ATCC® 8483™