Weekly low-dose methotrexate for reduction of Global Initiative for Asthma Step 5 treatment in severe refractory asthma: study protocol for a randomized controlled trial

by Polosa, Riccardo, Bellinvia, Salvatore, Caruso, Massimo, Emma, Rosalia, Alamo, Angela, Kowalski, Marek Leszek, Domingo, Christian
Published 2014