[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.
Step 1: Prepare data in Excel for mail merge. The most important step in the mail merge process is to set up and prepare your data. You'll use your Excel spreadsheet as the data source for the recipient list. Here are some tips to prepare your data for a mail merge. Make sure: Column names in your spreadsheet match the field names you want to insert in your mail merge.