To Juan María Sánchez Segura, principal researcher of the welfare team of the Intensive Care Service of the Santa Creu i Sant Pau Hospital of Barcelona for the project: Coneixement de la llei de voluntats anticipades pels malalts i familiars atesos en un servei de medicina intensiva a l'any i mig de la seva publicació (Knowledge of the law of living wills among patients and relatives attended by the intensive care service one-and-a-half years after introduction of the law).