TY - JOUR AU - SG Berk AU - JH Gunderson AU - AL Newsome AU - AL Farone AU - BJ Hayes AU - KS Redding AU - N Uddin AU - EL Williams AU - RA Johnson AU - M Farsian AU - others BT - Environmental science & technology LA - eng M1 - 23 PB - ACS Publications PY - 2006 EP - 7440–7444 T2 - Environmental science & technology TI - Occurrence of infected amoebae in cooling towers compared with natural aquatic environments: implications for emerging pathogens VL - 40 ER -