Internet of things Block-chain 3 Blockchain 3 blockchain 2 3-D printing 1 3D modeling 1 3D printers 1 Access control 1 Access policies 1 Access time 1 Anesthesiology 1 Antennas 1 Budget control 1 Business resources 1 Buyers and sellers 1 CP-ABE 1 Cloud-based 1 Cloud-based IoD 1 Cloud-based internet of drone 1 Cloud-computing 1 Commerce 1 Computer aided design 1 Computerized tomography 1 Cone-beam computed tomography 1 Consensus algorithms 1 Data privacy 1 Differential privacies 1 Digital Imaging and Communications in Medicine (DICOM) 1 Digital devices 1 Digital storage 1