Lansoprazole Increases Inorganic Pyrophosphate in Patients with Pseudoxanthoma Elasticum: A Double-Blind, Randomized, Placebo-Controlled Crossover Trial oleh Belén Murcia Casas, Juan Luis Carrillo Linares, Isabel Baquero Aranda, José Rioja Villodres, Vicente Merino Bohórquez, Andrés González Jiménez, Miguel Ángel Rico Corral, Ricardo Bosch, Miguel Ángel Sánchez Chaparro, María García Fernández, Pedro Valdivielso