"study number","owner","title","investigators","doi","time period"
"25963","NACDA","Study of Dementia in Swedish Twins, 1990-1999","Gatz, Margaret; Pedersen, Nancy","http://dx.doi.org/10.3886/ICPSR25963.v2","1999"
"03843","NACDA","Swedish Adoption/Twin Study on Aging (SATSA), 1984, 1987, 1990, and 1993","Pedersen, Nancy L.","http://dx.doi.org/10.3886/ICPSR03843.v1",""