title: Authors' Response.
authors.affiliation: Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Ibáñez
authors.affiliation: Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain rierasagrera@gmail.com.
authors.forename: María
authors.initials: M
authors.lastname: Riera
authors.affiliation: Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Campillo-Artero