Defining the spatial distribution of extracellular adenosine revealed a myeloid-dependent immunosuppressive microenvironment in pancreatic ductal adenocarcinoma ================================================================================================================================================================ * Vincenzo Graziano * Andreas Dannhorn * Heather Hulme * Kate Williamson * Hannah Buckley * Saadia A Karim * Matthew Wilson * Sheng Y Lee * Brajesh P Kaistha * Sabita Islam * James E D Thaventhiran * Frances M Richards * Richard Goodwin * Rebecca Brais * Jennifer P Morton * Simon J Dovedi * Alwin G Schuller * Jim Eyles * Duncan I Jodrell