title: Reply to the editor.
authors.affiliation: Advanced Center for Translational Regenerative Medicine, Division of Ear, Nose and Throat, Department for Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
authors.forename: Paolo
authors.initials: P
authors.lastname: Macchiarini
mesh_terms: D006801:Humans; D019736:Prostheses and Implants; D023822:Tissue Engineering; D014132:Trachea / Q000502:physiology* / Q000601:surgery*