Design and construction Equipment and supplies Wireless communication systems 4 Data processing 2 Access control 1 Amplifiers, Radio frequency 1 Body area networks (Electronics) 1 Electronic noise 1 Frequency synthesizers 1 Human-computer interaction 1 Local area networks (Computer networks) 1 Low voltage integrated circuits 1 Management 1 Metal oxide semiconductors, Complementary 1 Noise pollution 1 Patient monitoring 1 Security measures 1 Vehicular ad hoc networks (Computer networks) 1 Wireless LANs 1 Wireless communication systems in medical care 1