Name Info Provider Link
free resource Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0002-9297(08)00139-0
American Indian and Alaska Native Health free resource MedlinePlus Health Information https://medlineplus.gov/americanindianandalaskanativehealth.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18313026/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/18313026