?url_ver=Z39.88-2004&rft_id=10.53560%2FPPASA(60-3)816&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M.M.&rft.au=Memon%2C+M.M.&rft.aulast=Memon&rft.date=2023&rft.title=Proceedings+of+the+Pakistan+Academy+of+Sciences%3A+Part+A&rft.atitle=Blockchain+in+Healthcare%3A+A+Comprehensive+Survey+of+Implementations+and+a+Secure+Model+Proposal&rft.pages=1-13&rft.volume=60&rft.issue=3&rft.genre=article