Data for individual hospitals: Paired line plot presenting the change from the baseline survey to the follow-up survey for each of the following aseptic practices for neuraxial anesthesia: handwashing, removing jewelry or watches, wearing face mask, wearing a cap and wearing a sterile gown. As for Figure 1, the plot represents the percentage of responding anesthesiologists who either always (upper plot) or never (lower plot) adhere to the aseptic practices for neuraxial anesthesia. The data are compared for the year 2006 (prior to the ASRA guideline) and 2009. Each symbol represents a specific hospital from each of the four Israeli medical schools; hospitals are not identified and data are not analyzed statistically. Nevertheless, two phenomena are apparent: 1) an improvement in aseptic practice from 2006 to 2009 in almost every hospital and in almost every aseptic practice assessed and 2) a wide inter-hospital variation in practice.