Roy Ma

1.9k citations

32 papers · 1.5k indexed · h-index 18

Impact in

Behavioral Neuroscience top 1%
- Stress Responses and Cortisol
Biological Psychiatry top 1%
- Tryptophan and brain disorders

Papers in ⓘ

Biological Psychiatry 3
Genetics 10
- Glioma Diagnosis and Treatment 10

Co-authors: Gregory E. Miller (3 shared papers)Teresa J. Marin (2 shared papers)Steve W. Cole (2 shared papers)Jesusa M.G. Arevalo (2 shared papers)Richard Doll (1 shared paper)Edith Chen (1 shared paper)Nicolas Rohleder (1 shared paper)Michael McKenzie (12 shared papers)
Journals: International Journal of Radiation Oncology*Biology*Physics (8 papers)Radiotherapy and Oncology (3 papers)Journal of Applied Clinical Medical Physics (2 papers)Medical dosimetry (2 papers)Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques (2 papers)
Partner nations: Canada United States Denmark

In The Last Decade

Roy Ma

31 papers receiving 1.4k citations

Peers

Countries citing papers authored by Roy Ma

Since Specialization

Citations

This map shows the geographic impact of Roy Ma's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roy Ma with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roy Ma more than expected).

Fields of papers citing papers by Roy Ma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roy Ma. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roy Ma. The network helps show where Roy Ma may publish in the future.

Co-authors

The 25 scholars most cited alongside Roy Ma, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Roy Ma Line = papers co-authored together Roy Ma links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 32 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	A Functional Genomic Fingerprint of Chronic Stress in Humans: Blunted Glucocorticoid and Increased NF-κB Signaling Biological Psychiatry ·Gregory E. Miller, Edith Chen, Jasmen Sze, Teresa J. Marin, Jesusa M.G. Arevalo, Richard Doll, Roy Ma, Steve W. Cole	2008	448
2	Biologic Cost of Caring for a Cancer Patient: Dysregulation of Pro- and Anti-Inflammatory Signaling Pathways Journal of Clinical Oncology ·Nicolas Rohleder, Teresa J. Marin, Roy Ma, Gregory E. Miller	2009	198
3	Greater inflammatory activity and blunted glucocorticoid signaling in monocytes of chronically stressed caregivers Brain Behavior and Immunity ·Gregory E. Miller, Michael Murphy, Rosemary Cashman, Roy Ma, Jeffrey Ma, Jesusa M.G. Arevalo, Michael S. Kobor, Steve W. Cole	2014	140
4	A Comparison of Volumetric Modulated Arc Therapy and Conventional Intensity-Modulated Radiotherapy for Frontal and Temporal High-Grade Gliomas International Journal of Radiation OncologyBiologyPhysics ·Richard Shaffer, Alan Nichol, E. Vollans, Ming Fong, Sandy Nakano, Vitali Moiseenko, M. Schmuland, Roy Ma, Michael McKenzie, Karl F. Otto	2009	118
5	Meningiomas in 2009 American Journal of Clinical Oncology ·Belinda A. Campbell, Ashu Jhamb, John A. Maguire, Brian Toyota, Roy Ma	2009	74
6	Hearing preservation following fractionated stereotactic radiotherapy for vestibular schwannomas: prognostic implications of cochlear dose Journal of neurosurgery ·Carys Thomas, Salvatore Di Maio, Roy Ma, E. Vollans, Christina Chu, M.Math., Brenda Clark, Richard Lee, Michael McKenzie, Montgomery Martin, Brian Toyota	2007	64
7	Reduced Risk of Compressive Optic Neuropathy Using Orbital Radiotherapy in Patients With Active Thyroid Eye Disease American Journal of Ophthalmology ·Pari N. Shams, Roy Ma, Tom Pickles, Jack Rootman, Peter J. Dolman	2014	55
8	Audiologic and treatment outcomes after linear accelerator–based stereotactic irradiation for acoustic neuroma International Journal of Radiation OncologyBiologyPhysics ·Hans T. Chung, Roy Ma, Brian Toyota, Brenda Clark, James L. Robar, Michael McKenzie	2004	46
9	Volumetric Radiosurgery for 1 to 10 Brain Metastases: A Multicenter, Single-Arm, Phase 2 Study International Journal of Radiation OncologyBiologyPhysics ·Alan Nichol, Roy Ma, Fred Hsu, Lovedeep Gondara, Hannah Carolan, Robert Olson, Devin Schellenberg, François Germain, Arthur Cheung, Michael Peacock, Alanah Bergman, E. Vollans, Rosemin Vellani, Michael McKenzie	2015	40
10	State of the ablation nation: a review of ablative therapies for cure in the treatment of hepatocellular carcinoma Future Oncology ·Umer Salati, Aisling Barry, Frank Y. Chou, Roy Ma, David Liu	2017	35
11	Outcomes of Proton Radiation Therapy for Peripapillary Choroidal Melanoma at the BC Cancer Agency International Journal of Radiation OncologyBiologyPhysics ·Eric Tran, Roy Ma, Katherine Paton, E. W. Blackmore, Tom Pickles	2011	30
12	High-Grade Glioma Radiation Therapy Target Volumes and Patterns of Failure Obtained From Magnetic Resonance Imaging and 18F-FDOPA Positron Emission Tomography Delineations From Multiple Observers International Journal of Radiation OncologyBiologyPhysics ·Robert Kosztyla, Elisa Chan, Fred Hsu, Don Wilson, Roy Ma, Arthur Cheung, Susan Zhang, Vitali Moiseenko, François Bénard, Alan Nichol	2013	29
13	Long-Term Outcomes of Fractionated Stereotactic Radiation Therapy for Pituitary Adenomas at the BC Cancer Agency International Journal of Radiation OncologyBiologyPhysics ·Julian O. Kim, Roy Ma, Ryojo Akagami, Michael McKenzie, Michelle D. Johnson, Ermias Gete, Alan Nichol	2013	25
14	Persistent Disparities in Survival for Patients with Glioblastoma World Neurosurgery ·Mostafa Fatehi, Camille K. Hunt, Roy Ma, Brian Toyota	2018	25
15	Outcomes of Proton Beam Radiotherapy for Large Non-Peripapillary Choroidal and Ciliary Body Melanoma at TRIUMF and the BC Cancer Agency Ocular Oncology and Pathology ·Britta Weber, Katherine Paton, Roy Ma, Tom Pickles	2015	20
16	Visual Outcomes and Local Control After Fractionated Stereotactic Radiotherapy for Optic Nerve Sheath Meningioma Ophthalmic Plastic and Reconstructive Surgery ·Sarah Hamilton, Alan Nichol, Pauline T. Truong, Michael McKenzie, Fred Hsu, Arthur Cheung, Peter J. Dolman, Ermias Gete, Roy Ma	2017	20
17	The treatment of choroidal melanoma with 198Au plaque brachytherapy Radiotherapy and Oncology ·Anand Karvat, Cheryl Duzenli, Roy Ma, Katherine Paton, Tom Pickles	2001	19
18	Population-Based Study of Stereotactic Radiosurgery or Fractionated Stereotactic Radiation Therapy for Vestibular Schwannoma: Long-Term Outcomes and Toxicities International Journal of Radiation OncologyBiologyPhysics ·Andrea Lo, G. Ayre, Roy Ma, Fred Hsu, Ryojo Akagami, Michael McKenzie, Boris Valev, Ermias Gete, Isabelle Vallières, Alan Nichol	2017	17
19	Stereotactic body radiation therapy (SBRT) for hepatocellular carcinoma: imaging evaluation post treatment British Journal of Radiology ·Trenton T. Kellock, Teresa Liang, Alison Harris, Devin Schellenberg, Roy Ma, Stephen Ho, Wan Wan Yap	2018	16
20	Optimization of Stereotactic Radiotherapy Treatment Delivery Technique for Base-Of-Skull Meningiomas Medical dosimetry ·Brenda Clark, Charles Candish, E. Vollans, Ermias Gete, Richard Lee, Monty Martin, Roy Ma, Michael McKenzie	2008	15

About Roy Ma

Roy Ma is a scholar working on Biological Psychiatry, Genetics, Behavioral Neuroscience, Radiation and Neurology, having authored 32 papers that have together received 1.5k indexed citations. Recurring topics across this work include Meningioma and schwannoma management (14 papers), Glioma Diagnosis and Treatment (10 papers), Brain Metastases and Treatment (6 papers), Advanced Radiotherapy Techniques (5 papers), Neurofibromatosis and Schwannoma Cases (5 papers), Hepatocellular Carcinoma Treatment and Prognosis (4 papers), Ocular Oncology and Treatments (4 papers) and Medical Imaging Techniques and Applications (3 papers). The work is most often cited by research in Behavioral Neuroscience (393 citations), Biological Psychiatry (276 citations), Radiation (163 citations), Genetics (166 citations) and Neurology (235 citations). Roy Ma has collaborated with scholars based in Canada, United States and Denmark. Frequent co-authors include Gregory E. Miller, Teresa J. Marin, Steve W. Cole, Jesusa M.G. Arevalo, Richard Doll, Edith Chen, Nicolas Rohleder, Michael McKenzie, Brian Toyota and Alan Nichol. Their work appears in journals such as International Journal of Radiation Oncology*Biology*Physics, Radiotherapy and Oncology, Journal of Applied Clinical Medical Physics, Medical dosimetry and Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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