Faheem Reegu, Salwani Mohd Daud, Shadab Alam. “Interoperability Challenges in Healthcare Blockchain System - A Systematic Review”. Annals of the Romanian Society for Cell Biology (May 12, 2021): 15487–15499. Accessed October 12, 2025. http://annalsofrscb.ro/index.php/journal/article/view/5177.