# Daniel R. O’Brien

**Type:** Researchers  
**Canonical URL:** https://scholariq.org/researchers/daniel-r-o-brien/

## Facts

| Field | Value |
| --- | --- |
| Citations | 26,022 |
| Field | Cholangiocarcinoma and Gallbladder Cancer Studies |
| h-index | 34 |
| i10-index | 59 |
| Last Known Institution | Mayo Clinic in Arizona |
| OpenAlex ID | https://openalex.org/A5101447815 |
| ORCID iD | https://orcid.org/0000-0003-0740-7447 |
| Works | 145 |

## Researcher topics

- [Cholangiocarcinoma and Gallbladder Cancer Studies](https://scholariq.org/topics/cholangiocarcinoma-and-gallbladder-cancer-studies/)
- [Peptidase Inhibition and Analysis](https://scholariq.org/topics/peptidase-inhibition-and-analysis/)
- [Cancer-related gene regulation](https://scholariq.org/topics/cancer-related-gene-regulation/)
- [Cancer Genomics and Diagnostics](https://scholariq.org/topics/cancer-genomics-and-diagnostics/)
- [Chronic Lymphocytic Leukemia Research](https://scholariq.org/topics/chronic-lymphocytic-leukemia-research/)

## Researcher university

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

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