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Mark C. Walker

University of Ottawa - Ottawa Hospital Research Institute

Ottawa

Canada

  • University of Ottawa - Ottawa Hospital Research Institute

SCHOLARLY PAPERS

2

DOWNLOADS

82

TOTAL CITATIONS

0

Scholarly Papers (2)

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1.

USF-MAE: Ultrasound Self-Supervised Foundation Model with Masked Autoencoding

Number of pages: 18 Posted: 12 Jan 2026
Youssef Megahed, Robin Ducharme, Aylin Erman, Mark C. Walker, Steven Hawken and Adrian D.C. Chan
Carleton University, University of Ottawa - Ottawa Hospital Research Institute, University of Ottawa, University of Ottawa - Ottawa Hospital Research Institute, University of Ottawa - Ottawa Hospital Research Institute and Carleton University
Downloads 56 (1,074,648)

Abstract:

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deep learning, Masked Autoencoding, Self-Supervised Foundation, Ultrasound imaging, encoder-decoder architecture

2.

Perfluoroalkyl substances, Vitamin D, and Risk of Preterm Birth in a Canadian Cohort

Number of pages: 35 Posted: 20 Mar 2026
Mandy Fisher, James Owen, Leonora Marro, Beth Potter, Hope A. Weiler, Gillian England-Mason, Michael M. Borghese, Mark C. Walker, Linda Dodds, Michael Helewa, Tye E. Arbuckle, Bruce Lanphear, Peter von Dadelszen, Ashlyn Simpson, Julian Little and Jillian Ashley-Martin
Government of Canada - Health Canada, Government of Canada - Health Canada, Government of Canada - Health Canada, affiliation not provided to SSRN, Government of Canada - Health Canada, Government of Canada - Health Canada, Government of Canada - Health Canada, University of Ottawa - Ottawa Hospital Research Institute, Dalhousie University, University of Manitoba, Government of Canada - Health Canada, Simon Fraser University (SFU), King’s College London - Department of Women and Children’s Health, Government of Canada - Health Canada, University of Ottawa and Government of Canada - Health Canada
Downloads 26 (1,399,036)

Abstract:

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PFAS, preterm birth, vitamin D, 25-hydroxyvitamin D, vitamin D receptor