â¢ State and local. State government employees had an average salary of $47,231 in 2008, about 5% less than comparable jobs in the private sector. City and county workers earned an average of $43,589, about 2% more than private workers in similar jobs.
Remember, your doctor only needs a small sample of your blood to get a T cell count. This procedure is also known as a blood draw or venipuncture. You may have the test in a medical laboratory or a doctorâs office.
During embryonic development, specialized cells (e.g., muscle or immune cells) arise from a common stem cell that differentiates via a series of cellular changes triggered by specific gene expression patterns.