Kerstin Klaser

Dietary supplements during the COVID-19 pandemic: insights from 1.4M users of the COVID Symptom Study app - a longitudinal app-based community survey

David A. Drew, T. Spector, C. Steves, 2020, medRxiv.

Anxiety and depression symptoms after COVID-19 infection: results from the COVID Symptom Study app

David A. Drew, T. Spector, C. Steves, 2021, Journal of Neurology, Neurosurgery, and Psychiatry.