SQUIER CL, STOUT JE, KRSYTOFIAK S, ET AL. AM J INFECT CONTROL. 2005;33:360-7

“SPL’s study, ‘A proactive approach to prevention of health care-acquired Legionnaires’ disease: the Allegheny County (Pittsburgh) experience,’ is the first and only study to show the efficacy of a Legionella prevention guideline.”