Azithromycin added to hydroxychloroquine for patients admitted to intensive care due to coronavirus disease 2019 (COVID-19)—protocol of randomised controlled trial AZIQUINE-ICU oleh František Duška, Petr Waldauf, Milada Halačová, Václav Zvoníček, Jakub Bala, Martin Balík, Jan Beneš, Olga Klementová, Irena Kozáková, Viktor Kubricht, Anne Le Roy, Tomáš Vymazal, Veronika Řehořová, Vladimír Černý, on behalf of Czech Anaesthesia Clinical Trials and Audit Network