In addition to items mentioned in the protocol:
1) Enroll subjects willing to make all their data (including genomic data, but minus other PHI) open consent. Makes data more accessible and avoids many data management headaches
2) Collect microbiome, PBMCs; use Streck tubes for cell free DNA and RNA
3) Questionaires on food/nutrition and stress should be included
4) Freeze urine and plasma on dry ice ASAP.
5) Ideally also collect samples when people become ill.