National Longitudinal Study of Adolescent to Adult Health (Add Health)

https://addhealth.cpc.unc.edu/about/

Status: ok

https://addhealth.cpc.unc.edu/documentation/

Status: ok

https://addhealth.cpc.unc.edu/documentation/study-design/

Status: ok

https://addhealth.cpc.unc.edu/documentation/user-guides/

Status: ok

https://addhealth.cpc.unc.edu/documentation/codebooks/

Status: ok

https://addhealth-navigator.cpc.unc.edu/

Status: ok

https://addhealth.cpc.unc.edu/documentation/codebook-explorer/

Status: ok

https://addhealth.cpc.unc.edu/documentation/add-health-contextual-variable-inventory/

Status: ok

https://addhealth.cpc.unc.edu/documentation/restricted-use-datasets-index/

Status: ok

https://addhealth.cpc.unc.edu/documentation/frequently-asked-questions/

Status: ok

https://addhealth.cpc.unc.edu/data/

Status: ok

https://addhealth.cpc.unc.edu/data/ancillary-studies/

Status: ok

https://addhealth.cpc.unc.edu/ah-events/

Status: ok

https://addhealth.cpc.unc.edu/participants/

Status: ok