1. Isabel Muñoz Ojeda is a pharmacist, Pharmacy Department, Hospital Universitario Ramón y Cajal, Madrid, Spain.
2. Marina Sánchez-Cuervo is a pharmacist, Pharmacy Department, Hospital Universitario Ramón y Cajal.
3. Ángel Candela-Toha is a physician, Anesthesia and Resuscitation Department, Hospital Universitario Ramón y Cajal.
4. Dolores R. Serrano-López is a pharmacist, Pharmacology Department, School of Pharmacy, Universidad Complutense de Madrid, Madrid.
5. Teresa Bermejo-Vicedo is a pharmacist, Pharmacy Department, Hospital Universitario Ramón y Cajal.
6. Juan Miguel Alcaide-López-de-Lerma is a postanethesia care unit nurse manager, intensive care unit, Hospital Universitario Ramón y Cajal.