Improved COVID-19 outcomes in a large non-invasive respiratory support cohort despite emergence of the alpha variant oleh Najib M Rahman, Robert Wilson, John M Wrightson, Nayia Petousi, Ian Pavord, Mona Bafadhel, Stephen Chapman, Rachel Hoyles, William Flight, Emily Fraser, Annabel Nickol, Dinesh Addala, Radhika Banka, Robert Hallifax, Anny Sykes, John Park, Patrick Elder, Anand Sundaralingam, Maxine Hardinge, Chris D Turnbull, Sarah B Evans, Rachel Lardner, Henry V Bettinson, Peter Saunders, Alastair Moore, Nicholas P Talbot, Maria Tsakok, Anastasia Fries, Simon Couillard, James Melhorn, Timothy Hinks, Andrew Achaiah, Benedict M L Porter, Oliver Smith, Eihab Bedawi, Hannah Danbury, Eric Douglas, Ling Pei Ho, Vishal Nathwani, Shefaly Patel, Hannah Laurenson-Schafer, Francesca Roxburgh