Adenosine-generating ovarian cancer cells attract myeloid cells which differentiate into adenosine-generating tumor associated macrophages – a self-amplifying, CD39- and CD73-dependent mechanism for tumor immune escape ============================================================================================================================================================================================================================ * Itsaso Montalbán del Barrio * Cornelia Penski * Laura Schlahsa * Roland G. Stein * Joachim Diessner * Achim Wöckel * Johannes Dietl * Manfred B. Lutz * Michel Mittelbronn * Jörg Wischhusen * Sebastian F. M. Häusler