A multi-centre survey reveals variations in the standard treatments and treatment modifications for head and neck cancer patients during Covid-19 pandemic oleh Ifigenia Vasiliadou, David Noble, Andrew Hartley, Rafael Moleron, Paul Sanghera, Teresa Guerrero Urbano, Stefano Schipani, Dorothy Gujral, Bernie Foran, Shree Bhide, Anoop Haridass, Kannon Nathan, Andriana Michaelidou, Mehmet Sen, Konstantinos Geropantas, Mano Joseph, Lorcan O'Toole, Matthew Griffin, Laura Pettit, Jonathan Chambers, Petra Jankowska, Emma De Winton, Rebecca Goranova, Niveditha Singh, Ketan Shah, Anthony Kong Conceptualisation