Social media Social networking (online) 31 social media 22 human 13 Twitter 11 Humans 7 Social Media 7 article 7 COVID-19 6 Economic and social effects 6 Facebook 6 Instagram 6 Sentiment analysis 6 Public relations 5 Communication 4 Health communication 4 Performance 4 Personnel 4 Social networks 4 human experiment 4 social network 4 Article 3 Artificial intelligence 3 Attitude 3 Behavioral research 3 Classification (of information) 3 Data mining 3 Health 3 Learning systems 3 Social support 3