c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: peripheral blood mononuclear cells")
c("age in years: 64", "age group: old", "tissue: peripheral blood mononuclear cells")
c("age in years: 64", "age group: old", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")
c("age in years: 30", "age group: young", "tissue: serum")