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Karl Hansen

Concepts (312)

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 Publications Most Recent Publication Publications by All Authors Concept Score Why?
Infertility, Female
19
2022
42
4.120
Why?
Infertility
10
2022
35
3.820
Why?
Ovulation Induction
14
2022
33
3.120
Why?
Ovarian Follicle
10
2019
84
2.660
Why?
Live Birth
14
2021
39
2.540
Why?
Polycystic Ovary Syndrome
14
2022
63
1.780
Why?
Insemination, Artificial
8
2022
23
1.670
Why?
Pregnancy
32
2022
1131
1.650
Why?
Infertility, Male
8
2022
23
1.640
Why?
Aging
11
2019
946
1.320
Why?
Watchful Waiting
4
2022
18
1.310
Why?
Female
58
2022
14463
1.300
Why?
Fertility
8
2022
58
1.270
Why?
Pregnancy Rate
16
2022
45
1.260
Why?
Fertility Agents, Female
8
2022
15
1.260
Why?
Luteal Phase
2
2019
7
1.260
Why?
Progesterone
3
2019
128
1.180
Why?
Pregnancy, Ectopic
4
2021
11
1.160
Why?
Abortifacient Agents, Nonsteroidal
3
2021
5
1.130
Why?
Reproduction
4
2012
63
1.110
Why?
Humans
66
2022
26829
1.010
Why?
Adult
43
2022
7383
0.970
Why?
Ovary
3
2013
69
0.950
Why?
Reproductive Techniques, Assisted
5
2021
17
0.930
Why?
Hysterosalpingography
2
2020
4
0.860
Why?
Embryo Transfer
3
2021
13
0.850
Why?
Fertilization in Vitro
6
2021
24
0.820
Why?
Proprotein Convertases
1
2022
11
0.800
Why?
Models, Biological
3
2014
446
0.800
Why?
Prospective Studies
14
2022
1217
0.800
Why?
Insulin Resistance
3
2022
165
0.790
Why?
Life Style
3
2022
83
0.770
Why?
Progestins
2
2019
10
0.760
Why?
Cryopreservation
2
2021
12
0.740
Why?
Ovarian Reserve
2
2019
9
0.680
Why?
Ultrasonography
6
2018
228
0.670
Why?
Gonadotropins
5
2020
22
0.640
Why?
Biomarkers
8
2022
733
0.620
Why?
Estradiol
4
2014
174
0.610
Why?
Chorionic Gonadotropin
3
2021
22
0.570
Why?
Gonadal Steroid Hormones
1
2016
24
0.540
Why?
Pregnancy Outcome
6
2021
128
0.540
Why?
Obesity
6
2022
650
0.530
Why?
Clomiphene
5
2021
11
0.520
Why?
Premenopause
1
2015
20
0.500
Why?
Off-Label Use
1
2015
6
0.490
Why?
Drug Labeling
1
2015
4
0.490
Why?
Endometriosis
1
2015
19
0.480
Why?
Birth Rate
1
2014
11
0.480
Why?
Drug Prescriptions
1
2015
43
0.480
Why?
Follicle Stimulating Hormone
4
2012
71
0.470
Why?
Ovariectomy
2
2012
53
0.440
Why?
Primary Ovarian Insufficiency
1
2013
6
0.440
Why?
Semen
3
2022
27
0.420
Why?
Evidence-Based Medicine
1
2013
140
0.410
Why?
Treatment Outcome
11
2022
2264
0.410
Why?
Abortion, Spontaneous
3
2021
15
0.400
Why?
Spermatozoa
3
2022
29
0.390
Why?
Young Adult
15
2022
2581
0.380
Why?
Pregnancy, Multiple
3
2015
8
0.380
Why?
Male
19
2022
12870
0.370
Why?
Insemination
2
2020
6
0.350
Why?
Methotrexate
2
2021
32
0.340
Why?
Randomized Controlled Trials as Topic
7
2022
357
0.330
Why?
5'-Nucleotidase
4
2002
13
0.320
Why?
Body Mass Index
5
2022
386
0.320
Why?
Antioxidants
2
2021
220
0.310
Why?
Inhibins
4
2012
8
0.310
Why?
Follicular Phase
2
2004
8
0.300
Why?
Middle Aged
10
2019
6818
0.300
Why?
Adolescent
13
2021
2957
0.290
Why?
United States
8
2022
2033
0.270
Why?
Sperm Count
3
2022
13
0.270
Why?
Triazoles
2
2015
14
0.250
Why?
Nitriles
2
2015
32
0.250
Why?
Risk Factors
7
2022
2011
0.240
Why?
Patient Selection
2
2015
143
0.240
Why?
Triglycerides
2
2022
117
0.230
Why?
Infant, Newborn
4
2020
843
0.220
Why?
Galanin-Like Peptide
1
2003
1
0.220
Why?
Sympathetic Nervous System
1
2003
64
0.210
Why?
Metabolic Syndrome
2
2021
77
0.210
Why?
Insemination, Artificial, Homologous
2
2020
4
0.210
Why?
Dilatation and Curettage
2
2021
4
0.210
Why?
Proprotein Convertase 9
1
2022
3
0.200
Why?
Androgens
2
2020
47
0.200
Why?
Chi-Square Distribution
4
2015
144
0.200
Why?
Subtilisins
1
2022
6
0.200
Why?
Cholesterol, LDL
1
2022
64
0.200
Why?
Testosterone
2
2019
70
0.200
Why?
Predictive Value of Tests
3
2016
472
0.190
Why?
Decision Support Techniques
1
2022
49
0.190
Why?
Lipoproteins
1
2022
95
0.190
Why?
Retrospective Studies
5
2021
2433
0.190
Why?
Cohort Studies
5
2022
858
0.190
Why?
Vitamins
1
2021
22
0.190
Why?
Hydrocortisone
1
2022
88
0.190
Why?
Anti-Mullerian Hormone
2
2012
6
0.190
Why?
Precision Medicine
1
2022
67
0.190
Why?
Sleep
1
2021
100
0.180
Why?
Cholesterol
1
2022
182
0.180
Why?
Ethiodized Oil
1
2020
2
0.180
Why?
Endometrium
1
2020
38
0.180
Why?
Fertility Agents
1
2020
2
0.180
Why?
Surveys and Questionnaires
3
2021
918
0.180
Why?
Gonadotropin-Releasing Hormone
2
2015
37
0.180
Why?
Fertilization
2
2022
9
0.170
Why?
Child Behavior
1
2020
26
0.170
Why?
Child
3
2020
2147
0.170
Why?
Pregnancy Complications
1
2021
105
0.170
Why?
BRCA2 Protein
1
2019
18
0.170
Why?
Reproductive Medicine
2
2018
4
0.170
Why?
Metformin
1
2020
32
0.170
Why?
BRCA1 Protein
1
2019
23
0.170
Why?
Contrast Media
1
2020
93
0.170
Why?
Fallopian Tubes
2
2018
14
0.170
Why?
Erectile Dysfunction
1
2019
13
0.170
Why?
Water
1
2020
131
0.160
Why?
Ovulation
2
2018
28
0.160
Why?
Spermatogenesis
1
2019
11
0.160
Why?
Leiomyoma
1
2019
9
0.160
Why?
Child Development
1
2020
71
0.160
Why?
Endocrinologists
1
2019
2
0.160
Why?
National Institute of Child Health and Human Development (U.S.)
1
2018
2
0.160
Why?
Ethics Committees, Research
1
2018
6
0.160
Why?
Clinical Protocols
1
2018
45
0.160
Why?
Pre-Eclampsia
1
2018
48
0.150
Why?
Gynecology
1
2019
55
0.150
Why?
Menstrual Cycle
2
2012
22
0.150
Why?
Antidepressive Agents
1
2018
29
0.150
Why?
Reproducibility of Results
3
2010
747
0.150
Why?
Vitamin D
1
2018
44
0.150
Why?
Vitamin D Deficiency
1
2018
27
0.150
Why?
Transcriptome
1
2019
198
0.150
Why?
Quality of Life
2
2019
464
0.150
Why?
Diabetes, Gestational
1
2018
63
0.150
Why?
Sexual Dysfunction, Physiological
1
2017
6
0.140
Why?
Depression
1
2019
211
0.140
Why?
Semen Analysis
3
2022
9
0.140
Why?
Oxidative Stress
1
2021
624
0.140
Why?
Depressive Disorder, Major
1
2018
125
0.130
Why?
Alcohol Drinking
2
2015
162
0.130
Why?
Contraceptives, Oral
1
2015
22
0.130
Why?
Chlamydia trachomatis
1
2015
16
0.130
Why?
Chlamydia Infections
1
2015
17
0.130
Why?
Multicenter Studies as Topic
3
2021
42
0.130
Why?
Patient Dropouts
1
2015
6
0.130
Why?
Cross-Sectional Studies
2
2017
910
0.130
Why?
Promoter Regions, Genetic
2
2002
330
0.130
Why?
Ovulation Inhibition
1
2015
1
0.120
Why?
Contraceptives, Oral, Hormonal
1
2015
9
0.120
Why?
Referral and Consultation
1
2015
87
0.120
Why?
Organ Size
2
2020
83
0.120
Why?
Antibodies, Bacterial
1
2015
100
0.120
Why?
United States Food and Drug Administration
1
2015
43
0.120
Why?
Time Factors
2
2018
1562
0.120
Why?
Models, Theoretical
1
2015
129
0.120
Why?
Case-Control Studies
3
2018
700
0.110
Why?
Regulatory Sequences, Nucleic Acid
1
1994
25
0.110
Why?
Severity of Illness Index
2
2013
445
0.110
Why?
Analysis of Variance
1
2014
388
0.110
Why?
Immunoglobulin G
1
2015
266
0.110
Why?
Androgen-Insensitivity Syndrome
1
2013
4
0.110
Why?
Protein Biosynthesis
1
1994
106
0.110
Why?
Preoperative Care
1
2013
76
0.110
Why?
Research Design
2
2019
174
0.110
Why?
Prevalence
3
2019
472
0.100
Why?
Risk Assessment
4
2022
587
0.100
Why?
Congresses as Topic
1
2012
32
0.100
Why?
Smoking
1
2015
465
0.090
Why?
Infant
2
2020
957
0.090
Why?
Down-Regulation
2
2019
197
0.090
Why?
Child, Preschool
2
2020
1091
0.090
Why?
Sperm Motility
2
2022
11
0.090
Why?
Follow-Up Studies
3
2020
980
0.090
Why?
RNA, Messenger
3
2003
646
0.080
Why?
Multivariate Analysis
3
2015
298
0.080
Why?
Recombinant Proteins
2
2004
408
0.080
Why?
Magnetic Resonance Imaging
1
2013
802
0.080
Why?
Double-Blind Method
2
2020
399
0.080
Why?
Anthropometry
1
2008
94
0.070
Why?
Hyperandrogenism
2
2018
11
0.070
Why?
Observer Variation
2
2007
43
0.070
Why?
Hydronephrosis
1
2007
11
0.070
Why?
Ureteral Obstruction
1
2007
12
0.070
Why?
Base Sequence
4
1995
573
0.070
Why?
Animals
4
2013
9963
0.070
Why?
Stents
1
2007
113
0.070
Why?
Cloning, Molecular
3
1995
205
0.070
Why?
Molecular Sequence Data
4
1995
1036
0.060
Why?
Prognosis
2
2020
759
0.060
Why?
Image Processing, Computer-Assisted
1
2007
246
0.060
Why?
Phenotype
2
2018
665
0.060
Why?
Odds Ratio
2
2015
230
0.060
Why?
Inhibin-beta Subunits
1
2004
3
0.060
Why?
Activins
1
2004
4
0.060
Why?
Injections, Intraventricular
1
2003
7
0.060
Why?
Metabolism
1
2003
9
0.060
Why?
Arcuate Nucleus of Hypothalamus
1
2003
5
0.060
Why?
Uncoupling Protein 1
1
2003
13
0.050
Why?
Pituitary Gland
1
2003
53
0.050
Why?
Academic Medical Centers
2
2015
73
0.050
Why?
Ion Channels
1
2003
22
0.050
Why?
Adipose Tissue, Brown
1
2003
13
0.050
Why?
Pro-Opiomelanocortin
1
2003
14
0.050
Why?
Reference Values
1
2003
198
0.050
Why?
Eating
1
2003
66
0.050
Why?
Leptin
1
2003
66
0.050
Why?
Drug Administration Schedule
1
2003
218
0.050
Why?
Mitochondrial Proteins
1
2003
72
0.050
Why?
Logistic Models
2
2015
397
0.050
Why?
Body Weight
1
2003
246
0.050
Why?
alpha-Amylases
1
2022
2
0.050
Why?
Coitus
1
2022
14
0.050
Why?
Maternal Age
1
2022
25
0.050
Why?
Snoring
1
2021
8
0.050
Why?
Preconception Care
1
2022
17
0.050
Why?
Uterine Hemorrhage
1
2021
9
0.050
Why?
Carrier Proteins
1
2003
245
0.050
Why?
Clinical Decision-Making
1
2022
61
0.050
Why?
Ultrasonography, Prenatal
1
2021
36
0.050
Why?
Intestinal Mucosa
1
2002
186
0.050
Why?
Weight Loss
1
2022
72
0.050
Why?
Sleep Apnea, Obstructive
1
2021
38
0.050
Why?
Immunohistochemistry
2
2019
453
0.050
Why?
Patient Satisfaction
1
2021
89
0.050
Why?
Sleep Wake Disorders
1
2021
65
0.050
Why?
Combined Modality Therapy
1
2021
288
0.040
Why?
Nuclear Proteins
1
2002
245
0.040
Why?
Family Characteristics
1
2020
46
0.040
Why?
Gestures
1
2020
1
0.040
Why?
Rats
1
2003
1546
0.040
Why?
Heterozygote
1
2019
64
0.040
Why?
Germ-Line Mutation
1
2019
29
0.040
Why?
Membrane Proteins
1
2003
465
0.040
Why?
Observational Studies as Topic
1
2019
53
0.040
Why?
Weight Gain
1
2020
73
0.040
Why?
RNA Processing, Post-Transcriptional
1
2019
20
0.040
Why?
Chromatin Assembly and Disassembly
1
2019
20
0.040
Why?
Gene Regulatory Networks
1
2019
76
0.040
Why?
Hypoglycemic Agents
1
2020
105
0.040
Why?
DNA-Binding Proteins
1
2002
481
0.040
Why?
Transcription Factors
1
2002
509
0.040
Why?
Mice, Inbred C57BL
1
2003
1476
0.040
Why?
Pilot Projects
1
2020
390
0.040
Why?
Birth Weight
1
2018
63
0.040
Why?
Registries
1
2020
383
0.040
Why?
Asian Americans
1
2018
40
0.040
Why?
DNA Methylation
1
2019
148
0.040
Why?
Age Factors
1
2020
716
0.040
Why?
Exercise
1
2022
451
0.040
Why?
Mice
3
2003
4408
0.040
Why?
Diagnosis, Differential
1
2018
367
0.040
Why?
Sex Hormone-Binding Globulin
1
2017
4
0.040
Why?
Cognition
1
2020
294
0.040
Why?
Hirsutism
1
2017
17
0.030
Why?
Waist Circumference
1
2017
18
0.030
Why?
Hypertriglyceridemia
1
2017
8
0.030
Why?
Laparoscopy
1
2018
143
0.030
Why?
Transcription, Genetic
2
1995
400
0.030
Why?
Adenosine Deaminase
1
1995
5
0.030
Why?
Sequence Deletion
1
1995
65
0.030
Why?
Serologic Tests
1
2015
19
0.030
Why?
Receptors, Purinergic P1
1
1995
2
0.030
Why?
Base Composition
1
1995
107
0.030
Why?
African Americans
1
2018
350
0.030
Why?
Gene Expression Regulation, Enzymologic
1
1995
93
0.030
Why?
Blood Glucose
1
2017
300
0.030
Why?
Linear Models
1
2015
201
0.030
Why?
Enzyme-Linked Immunosorbent Assay
1
2015
253
0.030
Why?
Binding Sites
1
1995
338
0.030
Why?
Drug Therapy, Combination
1
2015
203
0.030
Why?
Antibodies
1
1995
124
0.030
Why?
Internet
1
2015
121
0.030
Why?
RNA Caps
1
1994
2
0.030
Why?
Restriction Mapping
1
1994
20
0.030
Why?
Genomic Library
1
1994
10
0.030
Why?
Gene Amplification
1
1994
22
0.030
Why?
Orchiectomy
1
2013
12
0.030
Why?
Epididymis
1
2013
8
0.030
Why?
Indians, North American
1
2018
511
0.030
Why?
Placenta
1
1994
74
0.030
Why?
Superovulation
1
2012
6
0.020
Why?
Alcoholic Beverages
1
2012
4
0.020
Why?
Coffee
1
2012
5
0.020
Why?
Tea
1
2012
7
0.020
Why?
Risk Reduction Behavior
1
2012
40
0.020
Why?
Abdominal Pain
1
2007
34
0.020
Why?
Emergency Service, Hospital
1
2007
117
0.020
Why?
Sequence Homology, Amino Acid
2
1995
130
0.010
Why?
Luteinizing Hormone
1
2004
57
0.010
Why?
Amino Acid Sequence
2
1995
674
0.010
Why?
Apyrase
1
2002
4
0.010
Why?
Hypoxia-Inducible Factor 1
1
2002
11
0.010
Why?
Cyclic AMP Response Element-Binding Protein
1
2002
25
0.010
Why?
Permeability
1
2002
58
0.010
Why?
Cell Hypoxia
1
2002
35
0.010
Why?
Adenosine Triphosphatases
1
2002
47
0.010
Why?
Hypoxia-Inducible Factor 1, alpha Subunit
1
2002
57
0.010
Why?
Antigens, CD
1
2002
134
0.010
Why?
Cells, Cultured
1
2002
970
0.010
Why?
Gene Expression Regulation
1
2002
623
0.010
Why?
Chickens
1
1995
59
0.010
Why?
Antibody Formation
1
1995
75
0.010
Why?
DNA Primers
1
1995
143
0.010
Why?
Mice, Inbred BALB C
1
1995
264
0.010
Why?
Ribonucleases
1
1993
9
0.010
Why?
Peptide Fragments
1
1995
197
0.010
Why?
Organ Specificity
1
1993
81
0.010
Why?
Blotting, Western
1
1995
503
0.010
Why?
Polymerase Chain Reaction
1
1993
262
0.010
Why?
DNA
1
1993
365
0.010
Why?
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Concepts (312)
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