The Spanish Society of Nephrology ( SEN) was founded in 1964 as an association with specialists of the branch of medicine dealing with the kidney and its diseases. In the first article of its statutes includes among its aims to "encourage and disseminate research in the fields of nephrology clinic , dialysis , renal transplantation , hypertension and all related matters", and in its second article the spirit of " encouraging relations with other regional and international societies."