Petra E. Spies

822 total citations
20 papers, 442 citations indexed

About

Petra E. Spies is a scholar working on Psychiatry and Mental health, Physiology and Neurology. According to data from OpenAlex, Petra E. Spies has authored 20 papers receiving a total of 442 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Psychiatry and Mental health, 11 papers in Physiology and 5 papers in Neurology. Recurrent topics in Petra E. Spies's work include Dementia and Cognitive Impairment Research (11 papers), Alzheimer's disease research and treatments (9 papers) and Neurological Disease Mechanisms and Treatments (4 papers). Petra E. Spies is often cited by papers focused on Dementia and Cognitive Impairment Research (11 papers), Alzheimer's disease research and treatments (9 papers) and Neurological Disease Mechanisms and Treatments (4 papers). Petra E. Spies collaborates with scholars based in Netherlands and United States. Petra E. Spies's co-authors include Marcel M. Verbeek, Marcel G. M. Olde Rikkert, Magnus Sjögren, Barbara C. Van Munster, Diane Slats, Sophia E. de Rooij, Frans R.J. Verhey, B Kremer, René J. F. Melis and Jurgen A.H.R. Claassen and has published in prestigious journals such as SHILAP Revista de lepidopterología, Neurobiology of Aging and Journal of Alzheimer s Disease.

In The Last Decade

Petra E. Spies

17 papers receiving 438 citations

Peers

Countries citing papers authored by Petra E. Spies

Since Specialization

Citations

This map shows the geographic impact of Petra E. Spies'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 Petra E. Spies with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Petra E. Spies more than expected).

Fields of papers citing papers by Petra E. Spies

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Petra E. Spies. 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 Petra E. Spies. The network helps show where Petra E. Spies may publish in the future.

Co-authorship network of co-authors of Petra E. Spies

This figure shows the co-authorship network connecting the top 25 collaborators of Petra E. Spies. A scholar is included among the top collaborators of Petra E. Spies based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Petra E. Spies. Petra E. Spies is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Does a bicycle accident as the cause of proximal femur fracture indicate that geriatric co-management is superfluous? A retrospective cohort study 2023 ·European Review of Aging and Physical Activity ·Petra E. Spies, (unknown), Benjamin L. Emmink, Tjard Schermer	0
2	Orthostatic blood pressure recovery in older males using alpha‐blockers for lower urinary tract symptoms, an explorative study in a urology outpatient clinic 2022 ·Journal of Clinical Pharmacy and Therapeutics ·Petra E. Spies, (unknown), John Heesakkers, Barbara C. Van Munster, Jurgen A.H.R. Claassen	0
3	Interaction between geriatric syndromes in predicting three months mortality risk 2022 ·Archives of Gerontology and Geriatrics ·(unknown), Martijn C. Schut, Petra E. Spies, Hester J. van der Zaag–Loonen, Sophia E. de Rooij, Ameen Abu‐Hanna, Barbara C. Van Munster	0
4	The predictive value of the ‘VMS frail older patients’ for adverse outcomes in geriatric inpatients 2021 ·Archives of Gerontology and Geriatrics ·(unknown), (unknown), Petra E. Spies, Hester J. van der Zaag–Loonen, Barbara C. Van Munster	2
5	Recognition of cognitive impairment and depressive symptoms in older patients with heart failure 2020 ·Netherlands Heart Journal ·(unknown), Petra E. Spies, Richard L. Braam, Barbara C. Van Munster	11
6	Does the Dutch Safety Management Program predict adverse outcomes for older patients in the emergency department? 2020 ·PubMed ·Henk Jan Schuijt, (unknown), (unknown), Peter van Duijvendijk, Hester J. van der Zaag–Loonen, Petra E. Spies, Barbara C. Van Munster	8
7	Geriatrische revalidatiezorg na triage op de Spoedeisende Hulp: Patiëntkarakteristieken en revalidatie-uitkomsten 2019 ·SHILAP Revista de lepidopterología ·(unknown), (unknown), Barbara C. Van Munster, Petra E. Spies	1
8	The Comparative Risk of Delirium with Different Opioids: A Systematic Review 2017 ·Drugs & Aging ·(unknown), (unknown), Petra E. Spies, Sophia E. de Rooij, Barbara C. Van Munster	113
9	Interaction between tramadol and selective serotonin reuptake inhibitors: are doctors aware of potential risks in their prescription practice? 2016 ·European Journal of Hospital Pharmacy ·Petra E. Spies, (unknown), Roel M. Willems, Jacqueline M. Bos, Cornelis Kramers	5
10	Alzheimer Biomarkers and Clinical Alzheimer Disease were Not Associated with Increased Cerebrovascular Disease in a Memory Clinic Population 2014 ·Current Alzheimer Research ·Petra E. Spies, Marcel M. Verbeek, Magnus Sjögren, Frank‐Erik de Leeuw, Jurgen A.H.R. Claassen	5
11	Addition of MHPG to Alzheimer's disease biomarkers improves differentiation of dementia with Lewy bodies from Alzheimer's disease but not other dementias 2013 ·Alzheimer s & Dementia ·Megan K. Herbert, Marjolein B. Aerts, H. Bea Kuiperij, Jurgen A.H.R. Claassen, Petra E. Spies, Rianne A.J. Esselink, Bastiaan R. Bloem, Marcel M. Verbeek	25
12	A prediction model to calculate probability of Alzheimer's disease using cerebrospinal fluid biomarkers 2012 ·Alzheimer s & Dementia ·Petra E. Spies, Jurgen A.H.R. Claassen, Petronella G.M. Peer, Marinus A. Blankenstein, Charlotte E. Teunissen, Philip Scheltens, Wiesje M. van der Flier, Marcel G. M. Olde Rikkert, Marcel M. Verbeek	18
13	Hourly variability of cerebrospinal fluid biomarkers in Alzheimer's disease subjects and healthy older volunteers 2011 ·Neurobiology of Aging ·Diane Slats, Jurgen A.H.R. Claassen, Petra E. Spies, George F. Borm, Kees Besse, (unknown), Jack Tseng, Magnus Sjögren, Marcel G. M. Olde Rikkert, Marcel M. Verbeek	39
14	CSF α-synuclein concentrations do not fluctuate over hours and are not correlated to amyloid β in humans 2011 ·Neuroscience Letters ·Petra E. Spies, Diane Slats, Marcel G. M. Olde Rikkert, Jack Tseng, Jurgen A.H.R. Claassen, Marcel M. Verbeek	10
15	Experiences with cerebrospinal fluid analysis in Dutch memory clinics 2010 ·European Journal of Neurology ·Petra E. Spies, Diane Slats, Inez H.G.B. Ramakers, Frans R.J. Verhey, Marcel G. M. Olde Rikkert	6
16	Cerebrospinal Fluid Biomarkers in Diagnosing Alzheimer’s Disease in Clinical Practice: An Illustration with 3 Case Reports 2010 ·Case Reports in Neurology ·Diane Slats, Petra E. Spies, Magnus Sjögren, Frans R.J. Verhey, Marcel M. Verbeek, Marcel G. M. Olde Rikkert	2
17	The Cerebrospinal Fluid Amyloid β42/40 Ratio in the Differentiation of Alzheimers Disease from Non-Alzheimers Dementia 2010 ·Current Alzheimer Research ·Petra E. Spies, Diane Slats, Magnus Sjögren, B Kremer, Frans R.J. Verhey, Marcel G. M. Olde Rikkert, Marcel M. Verbeek	112
18	Cerebrospinal Fluid Tau and Amyloid β Proteins Do Not Correlate With Cognitive Functioning in Cognitively Impaired Memory Clinic Patients 2010 ·CNS Spectrums ·Petra E. Spies, Jurgen A.H.R. Claassen, Diane Slats, Marcel G. M. Olde Rikkert, Marcel M. Verbeek, Roy P. C. Kessels	4
19	P3‐004: Cerebrospinal fluid alpha‐synuclein does not discriminate between dementia disorders 2009 ·Alzheimer s & Dementia ·Petra E. Spies, René J. F. Melis, Magnus Sjögren, Marcel G. M. Olde Rikkert, Marcel M. Verbeek	3
20	Cerebrospinal Fluid α-Synuclein Does Not Discriminate Between Dementia Disorders 2009 ·Journal of Alzheimer s Disease ·Petra E. Spies, René J. F. Melis, Magnus Sjögren, Marcel G. M. Olde Rikkert, Marcel M. Verbeek	78

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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