.dwg. DWG (from drawing) is a proprietary[2] binary file format used for storing two- and three- dimensional design data and metadata. It is the native format for several CAD packages including DraftSight, AutoCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.
You and your doctor can decide when it's time for you to begin Pap testing and how often you should have the test. In general, doctors recommend beginning Pap testing at age 21.
The American Cancer Society (ACS) and the USPSTF both recommend that women get their first Pap test within three years of having sex, or at age 21. The ACS recommends that women ages 21 to 30 should be tested every one or two years, depending on whether a conventional or liquid-based Pap test is used.