Evidence map›Paper›PMID 34377181›Full record

ArticleInternational archives of otorhinolaryngology2021

Swedish National Multicenter Study on Head and Neck Cancer of Unknown Primary: Prognostic Factors and Impact of Treatment on Survival.

Lars Axelsson, Erik Holmberg, Jan Nyman, Anders Högmo, Helena Sjödin, Maria Gebre-Medhin, Mathias von Beckerath, Tomas Ekberg, Lisa Farnebo, Charbel Talani and 3 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International archives of otorhinolaryngology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Diagnostic work-up strategies impact on head and neck Squamous Cell Carcinoma (SCC) of unknown primary survival: a national multicentric retrospective analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Lars AxelssonDepartment of Otorhinolaryngology, University of Gothenburg Sahlgrenska Academy, Goteborg, Sweden.ORCID 0000-0001-7868-4375
Erik HolmbergRegional Cancer Center in Western Sweden, Gothenburg, Sweden.
Jan NymanDepartment of Oncology, University of Gothenburg Sahlgrenska Academy, Gothenburg, Sweden.
Anders HögmoDepartment of Otorhinolaryngology - Head and Neck Surgery, Karolinska University Hospital, Stockholm, Sweden.
Helena SjödinDepartment of Oncology, Karolinska University Hospital, Stockholm, Sweden.
Maria Gebre-MedhinDepartment of Oncology, Lund University Hospital, Lund, Skåne, Sweden.
Mathias von BeckerathDepartment of Otorhinolaryngology - Head and Neck Surgery, Örebro University Hospital, Örebro, Sweden.
Tomas EkbergDepartment of Otorhinolaryngology - Head and Neck Surgery, Uppsala University Hospital, Uppsala, Sweden.
Lisa FarneboDepartment of Otorhinolaryngology - Head and Neck Surgery, Linköping University Hospital, Linkoping, Sweden.
Charbel TalaniDepartment of Oncology, Linköping University Hospital, Linkoping, Sweden.
Lena Norberg SpakDepartment of Otorhinolaryngology - Head and Neck Surgery, Norrlands University Hospital, Umea, Sweden.
Isak NotstamDepartment of Otorhinolaryngology, County Hospital Sundsvall-Harnosand, Sundsvall, Sweden.
Eva HammerlidDepartment of Otorhinolaryngology, University of Gothenburg Sahlgrenska Academy, Goteborg, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

cancer of unknown primaryhead and neck cancerhuman papillomavirusprognostic factorstreatment

Identifiers

PMID34377181
PMCPMC8321641

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.