Blood draw will consist of, two BD™ P100 tubes (2x8.5mL=17mL) where the plasma will be separated by centrifuge then placed in a -80ºC freezer. Two RNA tubes (2 x 2.5mL=5mL) and one DNA tube (8.5mL) will be place first, in a -20ºC freezer for 24-36 hours then moved to a -80ºC freezer. All the blood samples will remain in a -80ºC freezer at the Department of Clinical Investigation(DCI) laboratory until they are sent to Duke University after every 8 subjects.