Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0195-6663(07)00009-8
Black and African American Health free resource MedlinePlus Health Information https://medlineplus.gov/blackandafricanamericanhealth.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/17336423/