Wikipedia:Articles for deletion/Strong Heart Study
There are (as Phil notes) literally scores of oft-cited academic papers, and additionally a quick Google Books yields a great deal of independent coverage, e.g. https://books.google.com/books?id=ma9pAgAAQBAJ&pg=PA127#v=onepage&q&f=false 1 https://www.google.com/books/edition/Public_Health_Reports/0fOY5rSKmeUC?hl=en&gbpv=1&dq=%22Strong+Heart+Study%22+-wikipedia&pg=PA194&printsec=frontcover 2 https://www.google.com/books/edition/American_Indian_Culture_and_Research_Jou/-NgzAQAAIAAJ?hl=en&gbpv=1&bsq=%22an+important+study+among+the+American+indian%22&dq=%22an+important+study+among+the+American+indian%22&printsec=frontcover 3. A thorough  search would have uncovered all of this
— User:Extraordinary, 05:20, 27 May 2021 (UTC)
Stance: keep
Cited policy: WP:BEFORE (Wikipedia:Articles for deletion)