Dr. Carmen Fuentelsaz, head of the Health Research group at Vall d'Hebron Institute of Research (VHIR), has led in Spain, together with Dr. María Teresa Moreno, researcher from the Instituto de Salud Carlos III, a European study on nurses' workload and education, published in the prestigious journal " "http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2813%2962631-8/fulltext" The Lancet.The study findings, derived from more than 420.000 patients in 300 hospitals across nine European countries, among them Vall d’Hebron University Hospital, indicate that patients are more likely to die after common surgical procedures when they are cared for in hospitals with heavier nurse workloads and fewer nurses with bachelor’s degrees.