title: Preface.
authors.affiliation: Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
authors.forename: Balachundhar
authors.initials: B
authors.lastname: Subramaniam
authors.forename: Kyung W
authors.initials: KW
authors.lastname: Park
mesh_terms: D001826:Body Fluids / Q000502:physiology*; D006801:Humans; D016343:Monitoring, Intraoperative; D008991:Monitoring, Physiologic; D011182:Postoperative Care; D012151:Resuscitation; D014882:Water-Electrolyte Balance / Q000502:physiology