Safety and Feasibility of Transbronchial Cryobiopsy in Mechanically Ventilated Patients Alfons Torrego; Ana M. Muñoz-Fernández; Carmen Mª Lucena; Pedro Castro; Laura López-Vilaró; Joan Ramón Badía; Antoni Betbesé; Josep Ramirez; Felipe Andreo; María-Teresa Fernández-Figueras; Marc Fabra-Radua; Virginia Pajares; Carles Agustí;