title: Inhaled phosphodiesterase type 5 inhibitors for cystic fibrosis: a new therapy for systemic disease?
authors: University of Medicine and Pharmacy "Gr.T.Popa" Iasi, Department of Internal Medicine II-Pulmonary Disease, Pulmonary Disease University Hospital, Iasi, Romania. sabina.antonela.antoniu@pneum.umfiasi.ro
authors: Sabina Antonela
authors: SA
authors: Antoniu