Before revision:  We present a large-scale longitudinal study  of the DDI phenomenon at the primary- and secondary-care level using electronic health records  from the city of Blumenau in Southern Brazil (pop. ~340,000).
After revision:  We present a large-scale longitudinal study (18 months) of the DDI phenomenon at the primary- and secondary-care level using electronic health records from the city of Blumenau in Southern Brazil (pop. ~340,000).