Marsha Speevak

1.9k total citations
37 papers, 636 citations indexed

About

Marsha Speevak is a scholar working on Genetics, Molecular Biology and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Marsha Speevak has authored 37 papers receiving a total of 636 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Genetics, 19 papers in Molecular Biology and 11 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Marsha Speevak's work include Genomic variations and chromosomal abnormalities (16 papers), Prenatal Screening and Diagnostics (10 papers) and Genomics and Rare Diseases (7 papers). Marsha Speevak is often cited by papers focused on Genomic variations and chromosomal abnormalities (16 papers), Prenatal Screening and Diagnostics (10 papers) and Genomics and Rare Diseases (7 papers). Marsha Speevak collaborates with scholars based in Canada, France and United Kingdom. Marsha Speevak's co-authors include Sandra A. Farrell, Mario Chevrette, Alasdair G. W. Hunter, Nathalie G. Bérubé, Victoria Mok Siu, Chelsea Lowther, Stephen W. Scherer, Gregory Costain, Dimitri J. Stavropoulos and Daniele Merico and has published in prestigious journals such as Molecular and Cellular Biology, Human Molecular Genetics and Genomics.

In The Last Decade

Marsha Speevak

36 papers receiving 565 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Marsha Speevak Canada 17 420 302 141 96 54 37 636
Benno Röthlisberger Switzerland 17 462 1.1× 313 1.0× 163 1.2× 92 1.0× 68 1.3× 34 729
Vanna Pecile Italy 17 499 1.2× 443 1.5× 175 1.2× 112 1.2× 50 0.9× 54 825
Roel Hordijk Netherlands 15 520 1.2× 409 1.4× 184 1.3× 100 1.0× 42 0.8× 22 739
Lukrecija Brečević Switzerland 17 479 1.1× 361 1.2× 174 1.2× 161 1.7× 57 1.1× 31 749
Martine Doco‐Fenzy France 15 302 0.7× 349 1.2× 80 0.6× 70 0.7× 59 1.1× 29 690
Joanna Wiszniewska United States 12 360 0.9× 348 1.2× 106 0.8× 67 0.7× 38 0.7× 22 607
Ayala Aviram‐Goldring Israel 17 429 1.0× 411 1.4× 244 1.7× 73 0.8× 73 1.4× 31 872
Ewa Bocian Poland 16 479 1.1× 346 1.1× 108 0.8× 144 1.5× 62 1.1× 51 683
Chansonette Harvard Canada 17 417 1.0× 294 1.0× 185 1.3× 85 0.9× 32 0.6× 19 681
Hiba Risheg United States 10 403 1.0× 374 1.2× 164 1.2× 53 0.6× 21 0.4× 13 640

Countries citing papers authored by Marsha Speevak

Since Specialization
Citations

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

Fields of papers citing papers by Marsha Speevak

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Marsha Speevak. 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 Marsha Speevak. The network helps show where Marsha Speevak may publish in the future.

Co-authorship network of co-authors of Marsha Speevak

This figure shows the co-authorship network connecting the top 25 collaborators of Marsha Speevak. A scholar is included among the top collaborators of Marsha Speevak 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 Marsha Speevak. Marsha Speevak is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Chen, Sharon, Mari L. DeMarco, Mathew P. Estey, et al.. (2020). NullCanada: A novel α1-antitrypsin allele with in cis variants Glu366Lys and Ile100Asn. Clinical Biochemistry. 79. 23–27.
2.
Mattman, André, Brian M. Gilfix, Mari L. DeMarco, et al.. (2020). Alpha-1-antitrypsin molecular testing in Canada: A seven year, multi-centre comparison. Clinical Biochemistry. 81. 27–33. 4 indexed citations
3.
Hume, Stacey, Tanya N. Nelson, Marsha Speevak, et al.. (2019). CCMG practice guideline: laboratory guidelines for next-generation sequencing. Journal of Medical Genetics. 56(12). 792–800. 27 indexed citations
4.
Speevak, Marsha, Mari L. DeMarco, Nathan Wiebe, & Kenneth R. Chapman. (2018). An unusual case of alpha-1-antitrypsin deficiency: SZ/Z. Clinical Biochemistry. 64. 49–52. 4 indexed citations
5.
Lowther, Chelsea, Daniele Merico, Gregory Costain, et al.. (2017). Impact of IQ on the diagnostic yield of chromosomal microarray in a community sample of adults with schizophrenia. Genome Medicine. 9(1). 105–105. 24 indexed citations
6.
Buchanan, Janet A., David Chitayat, Elena Kolomietz, et al.. (2015). Prenatal genomic microarray and sequencing in Canadian medical practice: towards consensus. Journal of Medical Genetics. 52(9). 585–586. 4 indexed citations
7.
Ganjavi, Hooman, Victoria Mok Siu, Marsha Speevak, & Penny A. MacDonald. (2014). A fourth case of Feingold syndrome type 2: psychiatric presentation and management. BMJ Case Reports. 2014. bcr2014207501–bcr2014207501. 12 indexed citations
8.
Speevak, Marsha & Sandra A. Farrell. (2013). Charcot–Marie–Tooth 1B caused by expansion of a familial myelin protein zero (MPZ) gene duplication. European Journal of Medical Genetics. 56(10). 566–569. 20 indexed citations
9.
Costain, Gregory, Daniele Merico, Chelsea Lowther, et al.. (2013). Pathogenic rare copy number variants in community-based schizophrenia suggest a potential role for clinical microarrays. Human Molecular Genetics. 22(22). 4485–4501. 92 indexed citations
10.
Speevak, Marsha, Jean McGowan‐Jordan, & Kathy Chun. (2011). The detection of chromosome anomalies by QF‐PCR and residual risks as compared to G‐banded analysis. Prenatal Diagnosis. 31(5). 454–458. 13 indexed citations
11.
Speevak, Marsha & Sandra A. Farrell. (2011). Non‐syndromic language delay in a child with disruption in the Protocadherin11X/Y gene pair. American Journal of Medical Genetics Part B Neuropsychiatric Genetics. 156(4). 484–489. 33 indexed citations
12.
Ramyar, Lily, A. Mitri, Aaron Pollett, et al.. (2009). A novel complex mutation in MSH2 contributes to both Muir-Torre and Lynch Syndrome. Journal of Human Genetics. 55(1). 37–41. 8 indexed citations
13.
Bruyèrè, Hélène, Marsha Speevak, E.J.T. Winsor, et al.. (2006). Isodicentric Yp: prenatal diagnosis and outcome in 12 cases. Prenatal Diagnosis. 26(4). 324–329. 27 indexed citations
14.
Speevak, Marsha, Sean Young, Harriet Feilotter, & Peter Ainsworth. (2003). Alternatively spliced, truncated human BRCA2 isoforms contain a novel coding exon. European Journal of Human Genetics. 11(12). 951–954. 6 indexed citations
15.
Fan, Yao‐Shan, Yang Zhang, Marsha Speevak, et al.. (2001). Detection of submicroscopic aberrations in patients with unexplained mental retardation by fluorescence in situ hybridization using multiple subtelomeric probes. Genetics in Medicine. 3(6). 416–421. 40 indexed citations
16.
Ekker, Marc, et al.. (1996). Stable Transfer of Zebrafish Chromosome Segments into Mouse Cells. Genomics. 33(1). 57–64. 33 indexed citations
17.
Speevak, Marsha, et al.. (1995). Construction and analysis of microcell hybrids containing dual selectable tagged human chromosomes. Cytogenetic and Genome Research. 69(1-2). 63–65. 8 indexed citations
18.
Rajcan‐Separovic, Evica, Hungshu Wang, Marsha Speevak, et al.. (1995). Identification of the origin of double minutes in normal human cells by laser-based chromosome microdissection approach. Human Genetics. 96(1). 39–43. 14 indexed citations
19.
Speevak, Marsha & Mario Chevrette. (1994). Identification of chromosomes implicated in suppression of apoptosis in somatic cell hybrids. Biochemistry and Cell Biology. 72(11-12). 655–662. 4 indexed citations
20.
Tawagi, George, et al.. (1993). Mosaic r(13) in an infant with aprosencephaly. American Journal of Medical Genetics. 47(4). 531–533. 19 indexed citations

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Benno Röthlisberger Breakdown of academic impact, for papers by Vanna Pecile Breakdown of academic impact, for papers by Roel Hordijk Breakdown of academic impact, for papers by Lukrecija Brečević Breakdown of academic impact, for papers by Martine Doco‐Fenzy Breakdown of academic impact, for papers by Joanna Wiszniewska Breakdown of academic impact, for papers by Ayala Aviram‐Goldring Breakdown of academic impact, for papers by Ewa Bocian Breakdown of academic impact, for papers by Chansonette Harvard Breakdown of academic impact, for papers by Hiba Risheg
Rankless by CCL
2026