Analysis of Metformin Effects on Bone Marrow Fibrosis and Disease Progression in Primary Myelofibrosis Patients: Preliminary Results of an Open Label Phase II Trial (FIBROMET) - Campos, Paula De Melo; Pagnano, Katia B; Mancuso, Rubia; Teófilo, Francisco Breno S.; Coelho-Silva, Juan L; Della Via, Fernanda I; Freitas, Leandro Luiz Lopes; Carvalho, Hernandes F.; Costa, Fernando Ferreira; Traina, Fabiola; Olalla Saad, Sara T (Blood, 2019)