Fig. 2From: Impact of add-on laboratory testing at an academic medical center: a five year retrospective studyAdd-on Order Volumes. a Yearly add-on testing volumes from 2009 – 2014. The data in 2009 is normalized to an entire year based on order volume from May 2, 2009 to end of that calendar year. b Monthly add-on testing volumes spanning 2009 – 2014. c Add-on test volumes per monthBack to article page