"study number","owner","title","investigators","doi","time period"
"21600","DSDR","National Longitudinal Study of Adolescent Health (Add Health), 1994-2008","Harris, Kathleen Mullan; Udry, J. Richard","http://dx.doi.org/10.3886/ICPSR21600.v12","2008"
"27021","DSDR","National Longitudinal Study of Adolescent Health (Add Health), 1994-2008: Core Files [Restricted Use]","Harris, Kathleen Mullan; Udry, J. Richard","http://dx.doi.org/10.3886/ICPSR27021.v11","2008"