Bacterial contamination in a modern operating suite. Importance of floor contamination as a source of airborne bacteria
Epidemiological evidence of legionellosis transmission through domestic hot water supply systems and possibilities of control
Prevention of Legionella infections in bone marrow transplant unit : multifaceted approach to decontamination of a water system
Nuevo Manual de Instalaciones Eléctricas : Según el Nuevo Reglamento Electrotécnico de Baja Tensión (R.D. 842/2002 de 2 de agosto de 2002)