Value of soluble urokinase receptor serum levels in the differential diagnosis between idiopathic and secondary focal segmental glomerulosclerosis Alfons Segarra, Elías Jatem, M. Teresa Quiles, M. Antonia Arbós, Elena Ostos, Helena Ostos, Naiara Valtierra, Clara Carnicer, M. Teresa Salcedo

Multiple sclerosis and nephrotic syndrom in minimal change disease Orestes Benítez Llanes, Ch. Magrans, B. González

NEPHROTIC SYNDROME SECONDARY TO FOCAL AND SEGMENTAL GLOMERULOSCLEROSIS IN A PATIENT WITH ALVEOLAR SARCOIDOSIS. Manuel Polaina Rusillo, Maria del Pilar Pérez del Barrio, César Ramírez Tortosa, Francisco José Borrego Utiel