Validity of estimated aortic pulse wave velocity measured during the 6-min walk test to predict anaerobic fitness before major non-cardiac surgery. - Ripollés-Melchor J; Monge García MI; Ruiz-Escobar A; Sáez-Ruiz E; Algar-Yañez B; Abad-Motos A; Abad-Gurumeta A (Revista espanola de anestesiologia y reanimacion, 2024)