Science 28
Mathematics 18
Baseball 13
Discrimination in employment Law and legislation 10
Student loans 10
People with disabilities Employment Law and legislation 9
Physics 9
United States History 9
Baseball History 8
Colorado History 7
Veterans Health and hygiene 7
Rules and practice 6
Astronomy 5
Baseball players 5
Colorado 5
Medicare 5
Animals 4
Arterial occlusions 4
Attention-deficit hyperactivity disorder 4
Conduct of life 4
Diabetic retinopathy 4
Discrimination against people with disabilities Law and legislation 4
Discrimination in employment 4
Eating disorders 4
Environmental health 4
Eye Diseases 4
Natural history 4
People with disabilities Legal status, laws, etc 4
Peripheral vascular diseases 4
Peripheral vascular diseases Treatment 4
Presidents 4
Questions and answers 4
United States Civilization 4
Women Health and hygiene 4
African Americans History 3
Alphabet 3
Biology 3
Bipolar disorder in adolescence 3
Breast Cancer 3
Cardiology 3
Creation (Literary, artistic, etc.) 3
Curiosities and wonders 3
Days 3
Depression, Mental 3
Diagnostic imaging 3
Dry cleaning Environmental aspects 3
Geography 3
HIV infections Diagnosis 3
Harassment 3
Hispanic Americans Diseases 3
Hispanic Americans Health and hygiene 3
History 3
Mathematical analysis 3
Nursing 3
Older people Health and hygiene 3
Papillomavirus diseases 3
Pregnant women Alcohol use 3
Science History 3
Scientific recreations 3
Small business Employees Legal status, laws, etc 3
Sports 3
United States 3
United States Anniversaries, etc 3
United States Politics and government 3
Work environment 3
Zoology 3
Administrative agencies Personnel management 2
Adoption 2
Affective disorders 2
African Americans Diseases 2
African Americans Health and hygiene 2
Anxiety disorders 2
Anxiety disorders Treatment 2
Art 2
Artists 2
Arts 2
Asthma 2
Asthma Environmental aspects 2
Attention-deficit disorder in adults 2
Attention-deficit-disordered children 2
Attention-deficit-disordered youth 2
Audiometry 2
Auditory perception 2
Authors, American 2
Autism spectrum disorders 2
Autism spectrum disorders Treatment 2
Automobiles Fuel consumption Standards 2
Automobiles Motors Exhaust gas Standards 2
Baseball teams 2
Bioethics 2
Biotechnology industries 2
Bipolar disorder 2
Bipolar disorder in children 2
Birthparents 2
Black people History 2
Body weight Health aspects 2
Body weight Regulation 2
Borderline personality disorder 2
Borderline personality disorder Treatment 2
Breast Cancer Environmental aspects 2