human 1,130 controlled study 990 Humans 833 male 750 Article 738 female 718 adult 664 article 419 Female 386 Male 383 Adult 286 human experiment 275 physiology 257 nonhuman 255 major clinical study 241 Technology: general issues 232 clinical article 205 young adult 205 procedures 195 TK Electrical engineering. Electronics Nuclear engineering 192 middle aged 188 History of engineering and technology 186 diagnostic imaging 183 Young Adult 180 aged 169 nuclear magnetic resonance imaging 157 Middle Aged 152 Magnetic Resonance Imaging 135 Research & information: general 131 priority journal 131