Important links

https://www.nhlbi.nih.gov/health/sickle-cell-disease
https://www.nhs.uk/conditions/sickle-cell-disease/
https://en.wikipedia.org/wiki/Sickle_cell_disease
https://medlineplus.gov/genetics/condition/sickle-cell-disease/
https://www.cdc.gov/sickle-cell/about/index.html
https://www.sicklecelldisease.org/sickle-cell-health-and-disease/types/
https://www.afro.who.int/health-topics/sickle-cell-disease
https://www.britannica.com/science/sickle-cell-anemia