Effects of vitamin D on COVID-19 risk and hospitalisation in the UK biobank - Maria J. Monroy-Iglesias; Rathesh Thavarajah; Kerri Beckmann; Debra H. Josephs; Sheeba Irshad; Sophia N. Karagiannis; Mieke Van Hemelrijck; Aida Santaolalla (PLoS ONE, 2025)