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N. Ketchum · SciRah

Researcher profile · Semantic Scholar

N. Ketchum

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N. Ketchum — researcher profile on SciRah

h-index: 26
Works: 79
Citations: 1,679

Most-cited papers

Serum Dioxin and Diabetes Mellitus in Veterans of Operation Ranch Hand
G. Henriksen, N. Ketchum, J. Michalek, J. A. Swaby
1997Epidemiology285 citations Open access
Semantic Scholar
Utilization of evidence-based psychotherapies in Veterans Affairs posttraumatic stress disorder outpatient clinics
E. Finley, Hector A Garcia, N. Ketchum, Donald D. McGeary +3 more
2014Psychological services88 citations Open access
Semantic Scholar
Agent Orange Exposure and Monoclonal Gammopathy of Undetermined Significance: A Ranch Hand Veteran Cohort Study
O. Landgren, Y. K. Shim, J. Michalek, R. Costello +8 more
2015JAMA Oncology64 citations Open access
Semantic Scholar
Identification of microRNAs associated with hyperthermia-induced cellular stress response
G. Wilmink, Caleb L. Roth, B. Ibey, N. Ketchum +3 more
2010Cell stress & chaperones (Print)64 citations Open access
Semantic Scholar
Diabetes Mellitus And 2,3,7,8-Tetrachlorodibenzo- p -Dioxin Elimination in Veterans of Operation Ranch Hand
J. Michalek, N. Ketchum, R. Tripathi
2003Journal of Toxicology and Environmental Health, Part A59 citations
Semantic Scholar
A survey of perceived barriers and attitudes toward mental health care among OEF/OIF veterans at VA outpatient mental health clinics.
Hector A Garcia, E. Finley, N. Ketchum, Matthew Jakupcak +2 more
2014Military Medicine58 citations Open access
Semantic Scholar
Testing hypotheses about the shape parameter of a gamma distribution
J. Keating, R. Glaser, N. Ketchum
199057 citations
Semantic Scholar
Dioxin and diabetes mellitus: an analysis of the combined NIOSH and Ranch Hand data
K. Steenland, G. Calvert, N. Ketchum, J. Michalek
2001Occupational and Environmental Medicine56 citations Open access
Semantic Scholar
Postservice mortality of US Air Force veterans occupationally exposed to herbicides in Vietnam: 15-year follow-up.
J. Michalek, N. Ketchum, F. Akhtar
1998American Journal of Epidemiology56 citations
Semantic Scholar
Serum Dioxin, Testosterone, and Subsequent Risk of Benign Prostatic Hyperplasia: A Prospective Cohort Study of Air Force Veterans
Amit K. Gupta, N. Ketchum, C. Roehrborn, A. Schecter +2 more
2006Environmental Health Perspectives53 citations Open access
Semantic Scholar
Cancer in US Air Force Veterans of the Vietnam War
F. Akhtar, D. Garabrant, N. Ketchum, J. Michalek
2004Journal of Occupational and Environmental Medicine47 citations
Semantic Scholar
Did TCDD Exposure or Service in Southeast Asia Increase the Risk of Cancer in Air Force Vietnam Veterans Who Did Not Spray Agent Orange?
M. Pavuk, J. Michalek, A. Schecter, N. Ketchum +2 more
2005Journal of Occupational and Environmental Medicine45 citations
Semantic Scholar
Prostate cancer in US Air Force veterans of the Vietnam war
M. Pavuk, J. Michalek, N. Ketchum
2006Journal of Exposure Science and Environmental Epidemiology44 citations Open access
Semantic Scholar
Serum dioxin and cancer in veterans of Operation Ranch Hand.
N. Ketchum, J. Michalek, Joseph E. Burton
1999American Journal of Epidemiology44 citations
Semantic Scholar
Postservice mortality of Air Force veterans occupationally exposed to herbicides during the Vietnam War: 20-year follow-up results.
N. Ketchum, J. Michalek
2005Military Medicine43 citations
Semantic Scholar
Prospective Longitudinal Patient-Reported Satisfaction and Health-Related Quality of Life following DIEP Flap Breast Reconstruction: Relationship with Body Mass Index.
O. Ochoa, R. Garza, S. Pisano, M. Chrysopoulo +5 more
2019Plastic and Reconstructive Surgery39 citations
Semantic Scholar
Burnout among psychiatrists in the Veterans Health Administration
Hector A Garcia, C. McGeary, E. Finley, N. Ketchum +2 more
201538 citations Open access
Semantic Scholar
Rehabilitation outcomes of stroke patients with and without diabetes.
Bridgett Piernik-Yoder, N. Ketchum
2013Archives of Physical Medicine and Rehabilitation37 citations
Semantic Scholar
Mycoplasma pneumoniae and health outcomes in children with asthma
P. Wood, Jordan C. Kampschmidt, P. Dube, M. Cagle +7 more
2017Annals of Allergy, Asthma & Immunology35 citations Open access
Semantic Scholar
Serum dioxin and hepatic abnormalities in veterans of Operation Ranch Hand.
J. Michalek, N. Ketchum, M. Longnecker
2001Annals of Epidemiology35 citations
Semantic Scholar
The influence of trauma and patient characteristics on provider burnout in VA post-traumatic stress disorder specialty programmes.
Hector A Garcia, C. McGeary, E. Finley, Donald D. McGeary +2 more
2016Psychology and psychotherapy31 citations
Semantic Scholar
Comparative dosing and efficacy of sorafenib in hepatocellular cancer patients with varying liver dysfunction.
R. Al-Rajabi, Sukeshi R. Patel, N. Ketchum, N. Jaime +3 more
2015Journal of Gastrointestinal Oncology30 citations
Semantic Scholar
Phase II study evaluating the efficacy, safety, and pharmacodynamic correlative study of dual antiangiogenic inhibition using bevacizumab in combination with sorafenib in patients with advanced malignant melanoma
D. Mahalingam, L. Malik, M. Beeram, J. Rodón +8 more
2010Cancer Chemotherapy and Pharmacology30 citations
Semantic Scholar
Serum dioxin and immunologic response in veterans of Operation Ranch Hand.
J. Michalek, N. Ketchum, Irene J. Check
1999American Journal of Epidemiology29 citations
Semantic Scholar
Missed Initial Medical Visits: Predictors, Timing, and Implications for Retention in HIV Care
Ank E. Nijhawan, Yuanyuan Liang, Kranthi Vysyaraju, J. Muñoz +8 more
2017AIDS Patients Care and STDs28 citations Open access
Semantic Scholar
Prospective Evaluation of Operating Characteristics of Prostate Cancer Detection Biomarkers
Yuanyuan Liang, D. Ankerst, N. Ketchum, Barbara Ercole +4 more
2010Journal of Urology27 citations Open access
Semantic Scholar
Is there a role for body mass index in assessment of prostate cancer risk on biopsy?
Yuanyuan Liang, N. Ketchum, P. Goodman, E. Klein +1 more
2014Journal of Urology20 citations Open access
Semantic Scholar
Prescription Opioid Use is Associated with Virologic Failure in People Living with HIV
J. Flores, Yuanyuan Liang, N. Ketchum, B. Turner +4 more
2018Aids and Behavior19 citations
Semantic Scholar
Health Care Access, Utilization, and Cancer Screening Among Low-Income Latina Women
Cynthia M. Mojica, Bertha E. Flores, N. Ketchum, Yuanyuan Liang
2017Hispanic Health Care International18 citations
Semantic Scholar
Difficult encounters with psychiatric patients: a South Texas Psychiatry Practice-based Re search Network (PBRN) study
R. V. Sellers, Ricardo Salazar, Cervando Martinez, Stephen Gelfond +4 more
2012Journal of the American Board of Family Medicine18 citations Open access
Semantic Scholar
Prospective Longitudinal Patient-Reported Satisfaction and Health-Related Quality of Life following DIEP Flap Breast Reconstruction: Effects of Reconstruction Timing
O. Ochoa, R. Garza, S. Pisano, M. Chrysopoulo +5 more
2022Plastic and Reconstructive Surgery16 citations
Semantic Scholar
Utilization of evidence-based psychotherapies in Veterans Affairs posttraumatic stress disorder outpatient clinics.
E. Finley, Hector A Garcia, N. Ketchum, Donald D. McGeary +3 more
2015Psychological services13 citations
Semantic Scholar
A comparison of races and leukemia subtypes among patients in different cancer survivorship phases.
D. Pandya, Sukeshi R. Patel, N. Ketchum, B. Pollock +1 more
2011Clinical Lymphoma, Myeloma & Leukemia13 citations
Semantic Scholar
Evidence-based treatments for PTSD and VHA provider burnout: The impact of cognitive processing and prolonged exposure therapies.
Hector A Garcia, C. McGeary, E. Finley, N. Ketchum +2 more
201511 citations
Semantic Scholar
Community service learning: an effective vehicle for interprofessional education
T. D. Infante, L. Arévalo-Flechas, Lark A. Ford, M. Norma Partida +3 more
201510 citations Open access
Semantic Scholar
Characterization of Localized Osteosarcoma of the Extremity in Children, Adolescents, and Young Adults From a Single Institution in South Texas
Aaron J. Sugalski, A. Jiwani, N. Ketchum, J. Cornell +4 more
2014Journal of pediatric hematology/oncology10 citations Open access
Semantic Scholar
Hydration status of Air Force military basic trainees after implementation of the back-mounted hydration system.
D. Fogt, L. Brosch, Danny C Dacey, J. Kalns +5 more
2009Military Medicine10 citations Open access
Semantic Scholar
How concerns for bisphosphonate-induced osteonecrosis of the jaw affect clinical practice among dentists: a study from the South Texas Oral Health Network
Cara B. Gonzales, V. Young, N. Ketchum, J. Bone +2 more
2015General dentistry9 citations
Semantic Scholar
Should we move beyond VEGF inhibition in metastatic colorectal cancer? Lessons from early phase clinical trials.
Sukeshi R. Patel, A. Karnad, N. Ketchum, B. Pollock +3 more
2014Journal of Gastrointestinal Oncology8 citations
Semantic Scholar
Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (PCBs) in the serum of US Air Force veterans in 2002.
M. Pavuk, D. Patterson, W. Turner, L. Needham +1 more
2007Chemosphere8 citations Open access
Semantic Scholar
Cardiovascular Risk Assessment Varies Widely by Calculator and Race/Ethnicity in a Majority Latinx Cohort Living with HIV
Yuanyuan Liang, N. Ketchum, B. Turner, J. Flores +5 more
2019Journal of Immigrant and Minority Health7 citations
Semantic Scholar
Internal Mammary Lymph Node Biopsy During Free-Flap Breast Reconstruction: Optimizing Adjuvant Breast Cancer Treatment Through Comprehensive Staging
O. Ochoa, Vitali Azouz, A. Santillan, S. Pisano +6 more
2018Annals of Surgical Oncology6 citations
Semantic Scholar
Business models and provider satisfaction in in vitro fertilization centers in the USA
J. McLaughlin, J. Knudtson, R. S. Schenken, N. Ketchum +3 more
2018Journal of Assisted Reproduction and Genetics6 citations Open access
Semantic Scholar
Air Force Health Study: An Epidemiologic Investigation of Health Effects in Air Force Personnel Following Exposure to Herbicides. 2002 Follow-up Examination Results, May 2002 to March 2005
Joel Michalex, J. Robinson, Karen Fox, Vincent Elequin +6 more
20056 citations
Semantic Scholar
Case Volume-Dependent Changes in Operative Morbidity following Free Flap Breast Reconstruction: A 15-Year Single-Center Analysis
O. Ochoa, S. Pisano, Peter Ledoux, C. Nastala +6 more
2021Plastic and Reconstructive Surgery5 citations
Semantic Scholar
The Use of the Finasteride-Adjusted Prostate Cancer Prevention Trial Prostate Cancer Risk Calculator in a Mexican Referral Population: A Validation Study
Yuanyuan Liang, N. Ketchum, C. Louden, M. Jimenez-Ríos +2 more
2012Urologia internationalis5 citations
Semantic Scholar
The Air Force Health Study: An Epidemiologic Investigation of Health Effects in Air Force Personnel Following Exposure to Herbicides. Mortality Update 1996.
N. Ketchum
19965 citations
Semantic Scholar
Serum microRNA profiles among dioxin exposed veterans with monoclonal gammopathy of undetermined significance
Weixin Wang, Y. K. Shim, J. Michalek, E. Barber +9 more
2020Journal of Toxicology and Environmental Health, Part A4 citations Open access
Semantic Scholar
Mortality, length of life, and physical examination attendance in participants of the Air Force Health Study.
N. Ketchum, J. Michalek, M. Pavuk
2007Military Medicine4 citations
Semantic Scholar
The efficacy and safety of sorafenib in older adults with advanced hepatocellular carcinoma: An analysis of a majority Hispanic cohort
S. Arora, Snegha Ananth, N. Ketchum, J. Gelfond +2 more
2020Journal of Geriatric Oncology3 citations
Semantic Scholar

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J. Michalek×20
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J. Michalek — researcher profile on SciRah
Yuanyuan Liang×7
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Yuanyuan Liang — researcher profile on SciRah
E. Finley×6
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E. Finley — researcher profile on SciRah
Hector A Garcia×6
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Donald D. McGeary

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A. Peterson — researcher profile on SciRah

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M. Pavuk — researcher profile on SciRah

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O. Ochoa — researcher profile on SciRah

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M. Chrysopoulo×4

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M. Chrysopoulo — researcher profile on SciRah

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Peter Ledoux — researcher profile on SciRah