[PSV = peak systolic velocity; EDV = end diastolic velocity; ICA = internal carotid artery; CCA = common carotid artery] 1  normal: ICA PSV is <125 cm/sec and no plaque or intimal thickening is visible sonographically. < 2 50% ICA stenosis: ICA PSV is <125 cm/sec and plaque or intimal thickening is visible sonographically.
Mail merge is a process to create personalized letters and pre-addressed envelopes or mailing labels for mass mailings from a form letter â a word processing document which contains fixed text, which will be the same in each output document, and variables, which act as placeholders that are replaced by text from the data source.
The mail merge main document must be of the Letter type, though that does not mean that the output cannot be sent as an e-mail message. The data source must be in the form of an Excel worksheet and that worksheet must be the first sheet in the Excel workbook.