title: [Methodologic limitations in studies that try to compare different modalities of hemodialysis].
authors.affiliation: Agencia de Evaluación de Tecnologías Sanitarias de Galicia, Servicio Gallego de Salud, Area de Medicina Preventiva y Salud Pública, Universidad de Santiago, Santiago de Compostela, España. alberto.ruano.ravina@sergas.es
authors.forename: A
authors.initials: A
authors.lastname: Ruano
authors.forename: M
authors.initials: M
authors.lastname: Pérez-Ríos
authors.forename: P
authors.initials: P
authors.lastname: Branas
authors.forename: A
authors.initials: A
authors.lastname: Figueiras
mesh_terms: D002986:Clinical Trials as Topic; D019317:Evidence-Based Medicine; D006801:Humans; D006435:Renal Dialysis / Q000379:methods*; D012107:Research Design