%0 Journal Article %T ACHealthChain blockchain framework for access control and privacy preservation in healthcare %A Tawfik, Ahmed M. %A Al-Ahwal, Ayman %A Eldien, Adly S. Tag %A Zayed, Hala H. %J Scientific Reports %V 15 %N 1 %D 2025-05-14 %I Nature Publishing Group UK %~ DeepDyve