Monitoring contamination of hazardous drug compounding surfaces at hospital pharmacy departments. A consensus Statement. Practice guidelines of the Spanish Society of Hospital Pharmacists (SEFH) Silvia Valero-García; Eva González-Haba; Maria Queralt Gorgas-Torner; José María Alonso-Herreros; Ana Cristina Cercós Lletí; José Luis Poveda-Andrés; Miguel Ángel Calleja-Hernandez; Olga Delgado-Sánchez;