# Þorvarður R. Hálfdánarson

**Type:** Researchers  
**Canonical URL:** https://scholariq.org/researchers/orvar-ur-r-halfdanarson/

## Facts

| Field | Value |
| --- | --- |
| Citations | 14,969 |
| Field | Neuroendocrine Tumor Research Advances |
| h-index | 51 |
| i10-index | 159 |
| Last Known Institution | Mayo Clinic |
| OpenAlex ID | https://openalex.org/A5090608376 |
| ORCID iD | 0000-0001-8460-1257 |
| Works | 478 |

## Researcher papers

- [Clinical impact of COVID-19 on patients with cancer (CCC19): a cohort study](https://scholariq.org/papers/clinical-impact-of-covid-19-on-patients-with-cancer-ccc19-a-cohort-study/)
- [Pancreatic neuroendocrine tumors (PNETs): incidence, prognosis and recent trend toward improved survival](https://scholariq.org/papers/pancreatic-neuroendocrine-tumors-pnets-incidence-prognosis-and-recent-trend/)
- [Treatment-Related Adverse Events of PD-1 and PD-L1 Inhibitors in Clinical Trials](https://scholariq.org/papers/treatment-related-adverse-events-of-pd-1-and-pd-l1-inhibitors-in-clinical-trials/)
- [Neuroendocrine and Adrenal Tumors, Version 2.2021, NCCN Clinical Practice Guidelines in Oncology](https://scholariq.org/papers/neuroendocrine-and-adrenal-tumors-version-2-2021-nccn-clinical-practice/)
- [Factors Predicting Response, Perioperative Outcomes, and Survival Following Total Neoadjuvant Therapy for Borderline/Locally Advanced Pancreatic Cancer](https://scholariq.org/papers/factors-predicting-response-perioperative-outcomes-and-survival-following-total/)
- [NCCN Guidelines Insights: Neuroendocrine and Adrenal Tumors, Version 2.2018](https://scholariq.org/papers/nccn-guidelines-insights-neuroendocrine-and-adrenal-tumors-version-2-2018/)
- [The North American Neuroendocrine Tumor Society Consensus Paper on the Surgical Management of Pancreatic Neuroendocrine Tumors](https://scholariq.org/papers/the-north-american-neuroendocrine-tumor-society-consensus-paper-on-the-surgical/)
- [Hematologic manifestations of celiac disease](https://scholariq.org/papers/hematologic-manifestations-of-celiac-disease/)
- [Pancreatic endocrine neoplasms: epidemiology and prognosis of pancreatic endocrine tumors](https://scholariq.org/papers/pancreatic-endocrine-neoplasms-epidemiology-and-prognosis-of-pancreatic/)
- [The North American Neuroendocrine Tumor Society Consensus Guidelines for Surveillance and Medical Management of Midgut Neuroendocrine Tumors](https://scholariq.org/papers/the-north-american-neuroendocrine-tumor-society-consensus-guidelines-for/)
- [Improving outcome of valve replacement for carcinoid heart disease](https://scholariq.org/papers/improving-outcome-of-valve-replacement-for-carcinoid-heart-disease/)
- [Outcomes of surgical management of carcinoid heart disease in patients with primary gonadal neuroendocrine tumors](https://scholariq.org/papers/outcomes-of-surgical-management-of-carcinoid-heart-disease-in-patients-with/)

## Researcher topics

- [Neuroendocrine Tumor Research Advances](https://scholariq.org/topics/neuroendocrine-tumor-research-advances/)
- [Lung Cancer Research Studies](https://scholariq.org/topics/lung-cancer-research-studies/)
- [Neuroblastoma Research and Treatments](https://scholariq.org/topics/neuroblastoma-research-and-treatments/)
- [Pancreatic and Hepatic Oncology Research](https://scholariq.org/topics/pancreatic-and-hepatic-oncology-research/)
- [Cholangiocarcinoma and Gallbladder Cancer Studies](https://scholariq.org/topics/cholangiocarcinoma-and-gallbladder-cancer-studies/)

## Researcher university

- [Mayo Clinic](https://scholariq.org/institutions/mayo-clinic/)

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Source: ScholarIQ — public research metadata, principally OpenAlex. See https://scholariq.org/sources/ for provenance and https://scholariq.org/methodology/ for what these figures mean.