human 1,076 Humans 851 Article 561 female 479 male 477 controlled study 442 adult 402 article 333 genetics 292 Female 278 Male 276 nonhuman 229 Animals 214 metabolism 209 animal 205 procedures 191 Adult 189 physiology 157 major clinical study 144 COVID-19 140 human experiment 139 middle aged 138 clinical article 136 Deep learning 133 algorithm 131 TK Electrical engineering. Electronics Nuclear engineering 124 machine learning 123 unclassified drug 119 Middle Aged 114 chemistry 114