"colony forming unit" . . "cfu" . . . "CFU" . "Colony-forming unit#Tools for counting colonies" . "Colony Forming Unit" . . "Colony-forming unit" . "colony-forming cells" . "Colony-forming unit#Tools_for_counting_colonies" . . "Colony Forming Unit (CFU)" . "colony-forming unit" . "Colony-forming unit" . "Colony Forming Units" . "colonies per milliliter" . "colony-forming units" . .