Fig. 1From: Air pollution exposure is associated with MRSA acquisition in young U.S. children with cystic fibrosisFlow chart of study cohorts for evaluation of the association of PM2.5 exposure and acquisition of a) methicillin susceptible Staphylococcus aureus, b) methicillin resistant Staphylococcus aureus, c) Stenotrophomonas maltophilia, and d) Achromobacter xylosoxidans Back to article page