title: Response to editorial comments by Drs. Williams and Ramamoorthy.
authors.affiliation: Nationwide Children's Hospital/Ohio State University, Department of Anesthesiology and Pain Medicine, Columbus, Ohio, USA. peter.winch@nationwidechildrens.org.
authors.forename: Peter D
authors.initials: PD
authors.lastname: Winch
authors.affiliation: Nationwide Children's Hospital/Ohio State University, Department of Anesthesiology and Pain Medicine, Columbus, Ohio, USA.
authors.forename: Joseph
authors.initials: J
authors.lastname: Tobias
authors.affiliation: Nationwide Children's Hospital/Ohio State University, Department of Cardiothoracic Surgery, Columbus, Ohio, USA.
authors.forename: Mark
authors.initials: M
authors.lastname: Galantowicz
authors.affiliation: Nationwide Children's Hospital/Ohio State University, Department of Anesthesiology and Pain Medicine, Columbus, Ohio, USA.
authors.forename: Aymen
authors.initials: A
authors.lastname: Naguib
mesh_terms: D001803:Blood Transfusion / Q000706:statistics & numerical data*; D006348:Cardiac Surgical Procedures / Q000706:statistics & numerical data*; D005260:Female; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D008297:Male