*Indicates difference between monozygotic and dizygotic twin pairs at P<0.05; data for cut-points presented as percentage achieving that standard; SD, standard deviation.
The Swedish Adoption/Twin Study of Aging (SATSA) is a longitudinal study where the twin design and the inclusion of twins reared apart makes it possible to study the importance of genetic and environm
This resource describes fundamental features of the immune system (frequency of leukocyte subpopulations, cell surface protein expression) in a large cohort of twins. An accompanying manuscript uses a