Tiffany J. Callahan

The Human Phenotype Ontology in 2021

Sebastian Köhler, Michael Gargano, Nicolas Matentzoglu et al. · Nucleic Acids Research · 2020 · 1.2K citations · Full text

A Harmonized Data Quality Assessment Terminology and Framework for the Secondary Use of Electronic Health Record Data

Michael G. Kahn, Tiffany J. Callahan, Juliana Barnard et al. · eGEMs (Generating Evidence & Methods to improve patient outcomes) · 2016 · 565 citations · Full text

The Human Phenotype Ontology in 2024: phenotypes around the world

Michael Gargano, Nicolas Matentzoglu, Ben Coleman et al. · Nucleic Acids Research · 2023 · 311 citations · Full text

Generalisable long COVID subtypes: findings from the NIH N3C and RECOVER programmes

Justin Reese, Hannah Blau, Elena Casiraghi et al. · EBioMedicine · 2022 · 169 citations · Full text

Challenges in defining Long COVID: Striking differences across literature, Electronic Health Records, and patient-reported information

Halie M. Rando, Tellen D. Bennett, James Brian Byrd et al. · 2021 · 139 citations · Full text

Virus Epidemiology, Covid-19 Epidemiology, Novel Coronavirus Sars-cov-2 +17