human 1,005 Article 768 Malaysia 755 male 638 Humans 595 female 588 controlled study 568 adult 469 nonhuman 457 Male 362 Female 340 article 332 unclassified drug 286 priority journal 275 middle aged 240 Animals 238 major clinical study 226 Sustainable development 224 chemistry 201 animal 197 Adult 186 aged 186 Middle Aged 185 metabolism 180 Surveys 173 cross-sectional study 173 animal experiment 167 questionnaire 145 clinical article 143 Nanostructured materials 136