human 230 Humans 188 Article 129 controlled study 102 genetics 100 male 90 female 82 adult 73 metabolism 67 Male 58 Animals 53 Female 52 animal 52 nonhuman 51 article 48 TP Chemical technology 44 COVID-19 40 procedures 39 Adult 37 SARS-CoV-2 37 TK Electrical engineering. Electronics Nuclear engineering 37 unclassified drug 34 Biology, life sciences 32 chemistry 32 middle aged 32 Middle Aged 31 gene expression 31 Research & information: general 30 major clinical study 30 machine learning 28