Year      Author(s)      Title      Contribution      Gap Identified

2018      Shae & Tsai      Blockchain in Healthcare      Showed potential for secure health records      Lacked AI-driven analysis

2020      Kuo et al.      Blockchain-based Genomic Data Sharing      Enabled privacy-preserving sharing      No disease risk prediction

2021      Al-Yousuf et al.      AI for Genomic Risk Prediction      AI-based disease prediction      Weak data privacy mechanisms

2022      Nguyen et al.      Decentralized Consent Management      Blockchain-based consent systems      No integration with AI healthcare models

2023      Li et al.      Hybrid AI-Blockchain Models in Healthcare      Initial integration attempts      Limited scalability & usability