Fig. 2From: Building a tobacco user registry by extracting multiple smoking behaviors from clinical notesFlowchart for informatics pipeline information identification. Flowchart of the application of the pipeline to clinical notes. All notes were subjected to the smoking status algorithm. If the status assigned was never smoker or unknown, no further assessments were done. If the status assigned was current smoker, former smoker, or smoker temporality unknown, the note was assessed for pack year history and cessation dateBack to article page