human 49 Humans 42 Article 29 adult 16 male 16 female 15 COVID-19 14 Deep learning 14 controlled study 13 article 12 machine learning 12 Controllers 11 Learning systems 11 algorithm 11 deep learning 11 Machine design 10 Optimisations 10 Task analysis 10 Optimization 9 Robots 9 SARS-CoV-2 9 electronic health record 9 5G mobile communication systems 8 Antennas 8 Feature extraction 8 Internet of things 8 Reinforcement learning 8 mathematical model 8 procedures 8 Costs 7