title: Editorial comment: mind the step!
authors.forename: Daniele
authors.initials: D
authors.lastname: Maselli
mesh_terms: D006349:Heart Valve Diseases / Q000601:surgery*; D006801:Humans; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D008943:Mitral Valve / Q000601:surgery*; D012086:Reoperation / Q000379:methods; D020775:Thoracic Surgery, Video-Assisted / Q000379:methods; D013908:Thoracotomy / Q000379:methods