METNET: a phase II trial of metformin in patients with well-differentiated neuroendocrine tumours - Glasberg, Joao; Talans, Aley; Giollo, Thomas Rivelli; Recchimuzzi, Debora Zachello; Bezerra Neto, Joao Evangelista; López, Rossana Verónica Mendoza; Hoff, Paulo Marcelo Gehm; Riechelmann, Rachel P (Ecancermedicalscience, 2022)