Blood will be collected from each participant. Some of this blood will be sent to each clinical center's clinical laboratory for determination of specified laboratory values. The remaining blood will be sent to the Tissue Core Laboratory and aliquoted/stored as follows:
- DNA tubes are stored at -80°C. Isolated DNA is stored at -20°C in 5 µg aliquots.
- Serum and plasma samples are stored in 150 microliter aliquots at -80°C.