human 137 Humans 103 female 90 Article 80 male 78 controlled study 71 adult 70 Female 57 Male 46 major clinical study 42 China 41 article 37 Adult 32 genetics 32 middle aged 30 metabolism 28 Middle Aged 25 aged 25 procedures 23 nonhuman 21 pathology 21 Aged 20 diagnostic imaging 20 machine learning 20 prediction 17 COVID-19 16 Deep learning 15 clinical article 15 retrospective study 15 Animals 14