title: Comment on "humidification with high-flow nasal cannula and airway epithelial cells: caution, still learning from an extremely complex environment".
authors: Intensive Care Unit, Hospital Morales Meseguer, Avenida Marques Velez s/n, 30008 Murcia, Spain.
authors: Antonio M
authors: AM
authors: Esquinas
authors: Naomi Kondo
authors: NK
authors: Nakagawa
authors: Luiz Fernando Ferraz
authors: LF
authors: Da Silva