Figure 2.

Course of quarterly accumulated prescription days of benzodiazepines for long-term users (upper line), short-term users (middle line) and initial users (lower line) between 2007 and 2010. The first trimester of 2007 is omitted due to the unavailability of information of prescription days from the preceding trimester.

Kollen et al. BMC Family Practice 2012 13:111   doi:10.1186/1471-2296-13-111
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