Figure 4: A. Proportional measures of frequency of entries of the search terms “anesthesiologist” compared to “surgeon” by online users at the main google search page ( over the time period 2004 – 2010 (x-axis). Each measured time point is expressed as a normalized percentage of the maximum search frequency for all phrases. The term “surgeon” has consistently been searched with greater frequency; although interest in the term “anesthesiologist” has seen some increase since 2009. Panel B is an expansion of the data for only the search term “anesthesiologist” normalized to its maximum frequency. Results are screen shots from the authors’ computer using Google Insights for Search (; accessed: April 30, 2011).