Original research
Vitamin D levels and mortality with SARS-COV-2 infection: a retrospective two-centre cohort study
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Mansoor Zafar, Mangala Karkhanis, Muhammad Shahbaz, Alisha Khanna, Lucinda Barry, Saba Alam, Kamal Lawrence, Bipin Pun, Reem Eldebri, Opeyemi Makanjuola, Dana Safarova, Mariya Farooq, Hesam Nooredinavand, Frderic Cuison, Karuna Subba, Ratan Singh Randhawa, Johannes Hegner, Ojofeitimi Oluwamayowa, Amr Elyasaky, Bolurin Adekunle, Manivannan Periasamy, Mohamed Abdelbagi, Zahra Maryam, Bao Khuu, Andreia Esteves Morete, Giulio Ciroi, Steve Moran, William O'Neill, Maaryah J Zafar, Nadiyah Zafar, Mirej Patel, Raphael Golez, Abubakr Hadid, Tila Muhammad, Philip Mayhead, Mark Whitehead, Umesh Dashora
doi: 10.1136/postgradmedj-2021-140564
