“Neurodegenerative disease status and post-mortem pathology in idiopathic rapid-eye-movement sleep behaviour disorder: an observational cohort study,” by Dr. Alex Iranzo, Prof. Eduard Tolosa, Ellen Gelpi, Jose Luis Molinuevo, Francesc Valldeoriola, Monica Serradell, Raquel Sanchez-Valle, Isabel Vilaseca, Francisco Lomena, Dolores Vilas, Albert LLado, Carles Gaig, and Joan Santamaria (Vol. 12, No. 4, April 2013, p. 443-453).
www.thelancet.com/journals/laneur/article/PIIS1474-4422(13)70056-5/abstract