MLA
Ritchey, Mary Elizabeth. Central Line-associated Blood-stream Infections and Ventilator-associated Pneumonias: Changing Infection Rate Across Duration of Hospitalization and with Different Definitions of Time At Risk. Chapel Hill, NC: University of North Carolina at Chapel Hill, 2009. https://doi.org/10.17615/eve3-m859
APA
Ritchey, M. (2009). Central Line-associated Blood-stream Infections and Ventilator-associated Pneumonias: Changing Infection Rate Across Duration of Hospitalization and with Different Definitions of Time at Risk. Chapel Hill, NC: University of North Carolina at Chapel Hill. https://doi.org/10.17615/eve3-m859
Chicago
Ritchey, Mary Elizabeth. 2009. Central Line-Associated Blood-Stream Infections and Ventilator-Associated Pneumonias: Changing Infection Rate Across Duration of Hospitalization and with Different Definitions of Time At Risk. Chapel Hill, NC: University of North Carolina at Chapel Hill. https://doi.org/10.17615/eve3-m859