human 133 human experiment article 123 female 102 male 96 adult 89 Humans 70 controlled study 58 major clinical study 58 clinical article 41 questionnaire 38 Female 34 Male 32 education 31 learning 28 procedures 21 randomized controlled trial 20 Adult 19 adolescent 18 perception 18 skill 17 child 16 student 15 Surveys and Questionnaires 14 quantitative analysis 14 young adult 14 Adolescent 13 Young Adult 13 clinical practice 13 teaching 13