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David Williams

Concepts (323)

Concepts are derived automatically from a person's publications.

Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.

Name Number of pubs Most recent pub Pubs by all authors Concept score Why?
Retinal Cone Photoreceptor Cells
22
1996
31
7.030
Why?
Refractive Errors
12
2000
38
4.440
Why?
Retina
20
1993
204
4.210
Why?
Color Perception
10
1993
27
3.400
Why?
Continental Population Groups
6
2003
121
3.260
Why?
Ethnic Groups
5
2002
152
2.820
Why?
Healthcare Disparities
4
2008
77
2.780
Why?
Residence Characteristics
9
2002
68
2.760
Why?
Light
14
1993
159
2.670
Why?
Vision, Ocular
11
1994
70
2.590
Why?
Ophthalmoscopy
12
2002
38
2.550
Why?
Prejudice
12
2002
51
2.550
Why?
Optics and Photonics
11
1996
43
2.390
Why?
Color Vision Defects
10
1991
15
2.360
Why?
Fluorescence
5
2008
73
2.300
Why?
Retinal Pigment Epithelium
5
2006
15
2.280
Why?
Health Status Disparities
4
2008
49
2.230
Why?
Social Class
5
2002
87
1.850
Why?
Retinal Degeneration
3
2006
38
1.820
Why?
Ocular Physiological Phenomena
6
1994
15
1.770
Why?
Keratomileusis, Laser In Situ
5
2003
30
1.690
Why?
Lipofuscin
4
2008
12
1.670
Why?
Eye
5
1999
55
1.630
Why?
Eyeglasses
4
2002
15
1.570
Why?
Socioeconomic Factors
13
2002
404
1.570
Why?
Vision Disorders
4
1997
73
1.510
Why?
Myopia
5
2002
57
1.480
Why?
Retinal Ganglion Cells
9
1992
71
1.460
Why?
Retinal Pigments
7
1993
9
1.450
Why?
Humans
80
1988
36274
1.430
Why?
Pupil
8
1994
25
1.410
Why?
Retinal Rod Photoreceptor Cells
2
2008
12
1.390
Why?
Diagnostic Techniques, Ophthalmological
5
2003
19
1.380
Why?
Visual Acuity
8
1992
205
1.330
Why?
Poverty
4
2004
124
1.310
Why?
Radiation Injuries, Experimental
2
2008
90
1.230
Why?
Health Services Accessibility
8
2002
189
1.210
Why?
Contrast Sensitivity
12
1991
56
1.200
Why?
Cornea
6
1994
199
1.180
Why?
African Americans
6
2002
219
1.160
Why?
Fovea Centralis
7
1988
17
1.160
Why?
Adult
35
1988
11351
1.100
Why?
Retinal Vessels
3
2009
36
1.100
Why?
Adaptation, Physiological
3
2002
142
1.070
Why?
Stress, Psychological
5
2002
285
1.030
Why?
Sociology, Medical
4
2004
17
1.030
Why?
European Continental Ancestry Group
5
2003
234
1.020
Why?
Photic Stimulation
7
2002
232
1.000
Why?
Eye Movements
7
1992
157
0.990
Why?
Visual Pathways
2
2002
78
0.970
Why?
Hispanic Americans
3
2003
93
0.940
Why?
Corneal Topography
4
2003
38
0.840
Why?
Minority Groups
2
2002
56
0.820
Why?
Refraction, Ocular
4
1994
48
0.800
Why?
Mortality
1
2012
89
0.790
Why?
Health Services
1
2012
66
0.780
Why?
Research Design
3
2005
336
0.760
Why?
Molecular Imaging
1
2011
3
0.760
Why?
Macaca nemestrina
5
2004
86
0.730
Why?
Social Environment
2
2002
91
0.720
Why?
Photoreceptor Cells
7
1988
40
0.710
Why?
Risk Factors
10
2002
2345
0.700
Why?
Atherosclerosis
1
2010
43
0.700
Why?
Retinoscopy
2
2005
6
0.680
Why?
Psychophysics
4
1988
65
0.660
Why?
Health Status Indicators
4
2002
107
0.650
Why?
Fixation, Ocular
4
1990
75
0.640
Why?
Accommodation, Ocular
2
2001
7
0.630
Why?
Lenses
2
2007
13
0.630
Why?
Lung Neoplasms
1
2012
439
0.630
Why?
Pigment Epithelium of Eye
1
2008
15
0.630
Why?
Social Justice
3
2002
18
0.620
Why?
Male
25
1991
19675
0.620
Why?
Macaca fascicularis
5
1996
84
0.610
Why?
African Continental Ancestry Group
2
2005
125
0.600
Why?
Microscopy, Fluorescence
3
2006
264
0.590
Why?
Health Policy
1
2008
78
0.580
Why?
Visual Fields
3
2000
84
0.570
Why?
Models, Biological
7
1988
1008
0.570
Why?
Hypertension
1
2010
301
0.570
Why?
United States
11
2002
2688
0.570
Why?
Pattern Recognition, Visual
5
1990
39
0.570
Why?
Scotoma
1
2006
9
0.560
Why?
Visual Field Tests
1
2006
15
0.560
Why?
Health Status
3
2003
283
0.550
Why?
Photoreceptor Cells, Vertebrate
1
2006
10
0.550
Why?
Cone Opsins
3
2009
3
0.550
Why?
Female
22
1992
19838
0.550
Why?
Retinal Diseases
1
2006
45
0.540
Why?
Mydriatics
1
2006
6
0.540
Why?
Models, Neurological
4
1990
129
0.530
Why?
Photometry
1
2005
10
0.530
Why?
Iris
1
2005
20
0.530
Why?
Calibration
1
2005
44
0.530
Why?
Visual Perception
1
2007
126
0.520
Why?
Emigration and Immigration
3
2002
24
0.510
Why?
Women's Health
2
2002
60
0.510
Why?
Delivery of Health Care
2
2003
146
0.510
Why?
Sensation
1
2005
31
0.500
Why?
Asthma
1
2009
317
0.500
Why?
Cell Count
5
1999
286
0.500
Why?
Cities
1
2004
6
0.500
Why?
Cultural Characteristics
1
2005
25
0.500
Why?
Astigmatism
3
1996
34
0.490
Why?
Urban Health
1
2004
59
0.480
Why?
Cardiovascular Diseases
2
2005
277
0.480
Why?
Nervous System Physiological Phenomena
1
2004
14
0.470
Why?
Image Interpretation, Computer-Assisted
1
2005
107
0.470
Why?
Postoperative Complications
2
2005
733
0.470
Why?
Microscopy, Confocal
5
2008
194
0.440
Why?
Electroretinography
4
2004
33
0.430
Why?
Time Factors
7
1990
3182
0.430
Why?
Public Health
1
2004
99
0.420
Why?
Middle Aged
15
2001
9837
0.420
Why?
Surgical Flaps
1
2003
114
0.410
Why?
Animals
14
1996
16093
0.400
Why?
Retinoids
2
2011
25
0.400
Why?
Health Services Research
2
2012
118
0.390
Why?
Neuronal Plasticity
1
2002
99
0.390
Why?
Models, Theoretical
2
2002
192
0.390
Why?
Tomography, Optical Coherence
3
2006
31
0.370
Why?
Equipment Design
3
2004
248
0.370
Why?
Visual Cortex
1
2002
126
0.370
Why?
Macaca mulatta
4
1996
308
0.340
Why?
Fluorescein Angiography
3
2006
45
0.340
Why?
Optometry
2
2005
2
0.340
Why?
Reproducibility of Results
4
2003
877
0.330
Why?
Axons
3
2008
192
0.330
Why?
Diagnostic Imaging
2
2006
87
0.320
Why?
Dendrites
2
2008
46
0.320
Why?
Sex Factors
2
2008
597
0.310
Why?
Mutation
3
2004
1216
0.290
Why?
Aged, 80 and over
4
2004
2529
0.280
Why?
Reference Values
5
2001
439
0.270
Why?
Vision Tests
2
2005
20
0.260
Why?
Macaca
3
2000
70
0.250
Why?
Urban Population
2
2002
169
0.240
Why?
Phenotype
4
2008
763
0.240
Why?
Aged
7
2002
7269
0.230
Why?
Prospective Studies
4
2003
1689
0.230
Why?
Algorithms
3
2004
541
0.230
Why?
Nerve Fibers
2
2009
109
0.230
Why?
Dependovirus
2
2009
65
0.230
Why?
Optical Illusions
1
1993
6
0.220
Why?
Interferometry
5
1988
18
0.220
Why?
Green Fluorescent Proteins
2
2009
213
0.220
Why?
Risk Assessment
4
2005
884
0.210
Why?
Policy
1
2012
3
0.210
Why?
Gene Deletion
2
2010
190
0.210
Why?
Genetic Variation
2
2002
151
0.210
Why?
Pyridinium Compounds
1
2012
13
0.210
Why?
Politics
1
2012
29
0.210
Why?
Awareness
1
2012
34
0.210
Why?
Social Identification
1
2012
14
0.200
Why?
Eye Diseases
1
2012
45
0.200
Why?
Genetic Vectors
2
2009
339
0.200
Why?
Genetic Predisposition to Disease
2
2007
331
0.200
Why?
Retinal Telangiectasis
1
2011
1
0.200
Why?
Culture
1
2012
48
0.200
Why?
Space Perception
1
1993
84
0.200
Why?
Young Adult
3
2009
1059
0.200
Why?
Child
3
2008
4155
0.200
Why?
Keratoconus
3
2002
24
0.190
Why?
Genes, X-Linked
1
2010
1
0.190
Why?
Codon, Terminator
1
2010
9
0.190
Why?
Mathematics
4
1991
149
0.190
Why?
Life Style
3
2005
85
0.180
Why?
Transduction, Genetic
1
2011
124
0.180
Why?
Fourier Analysis
3
1996
40
0.180
Why?
Microglia
1
2011
76
0.180
Why?
Eukaryotic Initiation Factor-2
1
2010
6
0.180
Why?
Mosaicism
1
2009
13
0.180
Why?
Multiple Myeloma
1
2010
76
0.170
Why?
Antihypertensive Agents
1
2010
79
0.170
Why?
MicroRNAs
1
2010
39
0.170
Why?
Amino Acid Substitution
1
2009
124
0.170
Why?
Chi-Square Distribution
1
2010
344
0.170
Why?
E-Selectin
1
2009
17
0.170
Why?
Image Processing, Computer-Assisted
1
2011
262
0.160
Why?
Radiation Dosage
1
2009
125
0.160
Why?
Ophthalmoscopes
1
2008
6
0.160
Why?
Age Factors
1
2012
1128
0.160
Why?
Fluorescent Dyes
2
2006
226
0.160
Why?
Cyclic Nucleotide-Gated Cation Channels
1
2008
7
0.160
Why?
Perception
1
2008
65
0.160
Why?
Unemployment
1
2008
13
0.160
Why?
Prevalence
1
2010
562
0.160
Why?
Sensory Thresholds
4
1992
85
0.150
Why?
Violence
1
2009
70
0.150
Why?
Macula Lutea
1
1988
17
0.150
Why?
Blood Pressure
1
2010
467
0.150
Why?
Caregivers
1
2009
76
0.150
Why?
Logistic Models
1
2010
611
0.150
Why?
Cell Size
1
2008
88
0.150
Why?
Predictive Value of Tests
2
2006
606
0.150
Why?
Health Services Needs and Demand
1
2009
103
0.150
Why?
Gene Expression Regulation, Neoplastic
1
2010
256
0.150
Why?
Smoking
1
2012
399
0.150
Why?
Cross-Sectional Studies
1
2010
654
0.150
Why?
Rod Opsins
1
2007
11
0.150
Why?
Retinitis Pigmentosa
1
2007
11
0.150
Why?
Genotype
2
2004
490
0.150
Why?
Child Welfare
1
2008
71
0.140
Why?
Contact Lenses, Hydrophilic
1
2007
30
0.140
Why?
Longitudinal Studies
2
2005
395
0.140
Why?
Head
2
1993
76
0.140
Why?
Posture
2
1993
110
0.140
Why?
False Positive Reactions
1
2006
88
0.140
Why?
Rats
2
2009
4289
0.140
Why?
Fundus Oculi
1
2006
23
0.140
Why?
Monte Carlo Method
1
2006
58
0.140
Why?
Coronary Artery Disease
1
2007
96
0.140
Why?
Decision Making
1
2008
223
0.130
Why?
Phenylephrine
1
2006
29
0.130
Why?
Lasers
2
2000
59
0.130
Why?
Computer Simulation
2
2002
302
0.130
Why?
Models, Statistical
1
2007
226
0.130
Why?
Diagnosis, Computer-Assisted
1
2006
62
0.130
Why?
Mississippi
1
2005
3
0.130
Why?
Neuropsychological Tests
1
2007
386
0.120
Why?
Substance-Related Disorders
1
2007
206
0.120
Why?
Urban Health Services
1
2004
21
0.120
Why?
Brazil
1
2004
25
0.120
Why?
Color Perception Tests
2
1993
8
0.120
Why?
Feasibility Studies
1
2004
202
0.110
Why?
Refractive Surgical Procedures
1
2003
10
0.110
Why?
Life Expectancy
1
2003
33
0.110
Why?
Photorefractive Keratectomy
1
2003
21
0.110
Why?
Insurance Coverage
1
2003
37
0.110
Why?
Clinical Competence
1
2005
261
0.110
Why?
Geography
1
2002
20
0.100
Why?
Cultural Diversity
1
2002
13
0.100
Why?
Acculturation
1
2002
11
0.100
Why?
Cross-Cultural Comparison
1
2002
33
0.100
Why?
Wound Healing
1
2003
206
0.100
Why?
Discrimination (Psychology)
3
1990
80
0.100
Why?
Insurance, Health
1
2003
107
0.100
Why?
Sex Characteristics
1
2002
138
0.100
Why?
Depression
1
2006
432
0.100
Why?
Mice
2
1996
6111
0.100
Why?
Cause of Death
1
2002
162
0.100
Why?
Fiber Optic Technology
1
2000
25
0.090
Why?
Normal Distribution
1
2000
19
0.090
Why?
Quality of Health Care
1
2003
209
0.090
Why?
Neural Inhibition
1
2000
66
0.090
Why?
Sequence Analysis, DNA
2
2010
166
0.090
Why?
Densitometry
1
1999
34
0.080
Why?
Treatment Outcome
1
2006
2615
0.080
Why?
Cluster Analysis
2
2005
88
0.070
Why?
Health Surveys
2
2007
215
0.070
Why?
Gene Expression
2
2009
751
0.070
Why?
Apoptosis
2
2010
823
0.060
Why?
Lens, Crystalline
1
1994
35
0.060
Why?
Michigan
2
2002
19
0.060
Why?
Adolescent
3
2005
4766
0.060
Why?
Perceptual Distortion
1
1993
4
0.060
Why?
Thiocyanates
1
2012
18
0.050
Why?
Mass Spectrometry
1
2012
115
0.050
Why?
Acetylcysteine
1
2012
78
0.050
Why?
Chromatography, High Pressure Liquid
1
2012
208
0.050
Why?
Vitamin E
1
2012
87
0.050
Why?
Capillary Permeability
1
2011
31
0.050
Why?
Synapsins
1
2011
5
0.050
Why?
Intravitreal Injections
1
2011
7
0.050
Why?
Crystallization
1
2011
83
0.050
Why?
Connexins
1
2011
52
0.050
Why?
Argonaute Proteins
1
2010
2
0.050
Why?
Syndecan-1
1
2010
3
0.050
Why?
Glutathione
1
2012
230
0.050
Why?
Genes, Reporter
1
2011
208
0.040
Why?
Genome-Wide Association Study
1
2010
21
0.040
Why?
Color Vision
1
2009
1
0.040
Why?
Gene Silencing
1
2010
41
0.040
Why?
Actins
1
2011
192
0.040
Why?
Chromosomes, Human, X
1
2009
11
0.040
Why?
Psychometrics
2
1990
223
0.040
Why?
Dark Adaptation
2
1993
13
0.040
Why?
Oligonucleotides
1
2010
88
0.040
Why?
Fluorescein
1
2009
22
0.040
Why?
Glaucoma
1
2009
36
0.040
Why?
Arginine
1
2009
108
0.040
Why?
Case-Control Studies
1
2011
617
0.040
Why?
Capillaries
1
2009
84
0.040
Why?
Cysteine
1
2009
155
0.040
Why?
Affect
1
2009
74
0.040
Why?
Employment
1
2009
64
0.040
Why?
Color
1
2008
23
0.040
Why?
Bayes Theorem
1
2008
39
0.040
Why?
Oligonucleotide Array Sequence Analysis
1
2010
286
0.040
Why?
Rhodamines
1
2008
15
0.040
Why?
Dextrans
1
2008
44
0.040
Why?
Polymerase Chain Reaction
1
2010
596
0.040
Why?
Health Behavior
1
2009
101
0.040
Why?
Blotting, Western
1
2010
645
0.040
Why?
Cell Line
1
2012
1585
0.040
Why?
Retinoscopes
1
2007
2
0.040
Why?
Gene Expression Profiling
1
2010
301
0.040
Why?
Flow Cytometry
1
2010
603
0.040
Why?
Cell Line, Tumor
1
2010
575
0.040
Why?
Motion Perception
1
1990
164
0.040
Why?
Problem Solving
1
2007
45
0.040
Why?
Interview, Psychological
1
2007
76
0.040
Why?
Confidence Intervals
1
2007
165
0.040
Why?
Chronic Disease
1
2009
522
0.030
Why?
Cell Proliferation
1
2010
515
0.030
Why?
Odds Ratio
1
2007
315
0.030
Why?
Rats, Sprague-Dawley
1
2009
986
0.030
Why?
Self-Assessment
1
2006
52
0.030
Why?
Attention
1
2007
149
0.030
Why?
Mental Health
1
2006
83
0.030
Why?
Waist-Hip Ratio
1
2005
2
0.030
Why?
Hyperopia
1
2005
9
0.030
Why?
Cholesterol, HDL
1
2005
62
0.030
Why?
Papio
1
2004
21
0.030
Why?
Cohort Studies
1
2007
969
0.030
Why?
Electrophysiology
1
2004
247
0.030
Why?
Lasers, Excimer
1
2003
24
0.030
Why?
Questionnaires
1
2007
1004
0.030
Why?
Poverty Areas
1
2002
13
0.030
Why?
Housing
1
2002
29
0.020
Why?
Anthropometry
1
1996
42
0.020
Why?
Photography
1
1996
40
0.020
Why?
Rotation
1
1991
114
0.010
Why?

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