[Epidemiological surveillance of congenital heart defects: the Tetralogy of Fallot in the Valencian Region, 2007-2017.].

Objective: Tetralogy of Fallot is characterized by the presence of four congenital heart defects. Objective: to describe the temporal trend and distribution of Tetralogy of Fallot, in children under one year in the Valencian Region.

Methods: Cases with Tetralogy of Fallot (code Q21.

[Wilson's disease in Spain: validation of sources of information used by the Rare Diseases Registries].

Objective: To evaluate the sources of information used by the Regional Population-based Registries of Rare Diseases (RRD) for Wilson's Disease identification in Spain; to calculate its prevalence and mortality; and to describe the sociodemographic characteristics of those affected.

Method: Cross-sectional epidemiological study, period 2010-2015. Possible cases were identified by codes 275.