title: Immune aging and challenges for immune protection of the graying population.
authors.affiliation: Departments of Pediatrics and Immunology, University of Pittsburgh School of Medicine, the UPMC Children's Hospital of Pittsburgh, the University of Pittsburgh Cancer Institute, the McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15224, USA.
authors.forename: Abbe N
authors.initials: AN
authors.lastname: Vallejo