To select a sample with PROC SURVEYSELECT, you input a SAS data set that contains the sampling frame, or list of units from which the sample is to be selected. You also specify the selection method, ...

This example illustrates using the TREE option to draw organizational charts. The Network data set, DOCUMENT, describes how the procedures are distributed between the two volumes of the new SAS/OR ...

The reimbursement rates for many ASC procedures have benefited and will benefit under the new Medicare payment system. One such procedure seeing a noticeable reimbursement boost is endoscopy with ...

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The gallbladder removal procedure is complex, a minutes-long string of 17 tasks. The robot had to identify certain ducts and arteries and grab them precisely, strategically place clips, and sever ...