Use of heparins in patients with cancer: individual participant data meta-analysis of randomised trials study protocol oleh Matthias Briel, Gordon Guyatt, Qi Zhou, Simon Noble, Nick van Es, Alfonso Iorio, Holger J Schünemann, Jan Brozek, Mark Crowther, Nancy Santesso, Elie A Akl, Joseph Beyene, Maura Marcucci, David Garcia, Melissa Brouwers, Gareth Griffiths, Walter Ageno, Matthew Ventresca, Gary Lyman, Fergus Macbeth, Marcello DiNisio, Lawrance Mbuagbaw, Ignacio Neumann, Mark Levine, Stephan Moll, Michael Streiff, Tejan Baldeh, Ivan Florez, Ozlem Gurunlu Alma, Ziad Solh, George Bozas, Gilbert Zulian, Anthony Maraveyas, Bernard Lebeau, Harry Buller, Jessica Evans, Robert McBane, Suzanne Bleker, Uwe Pelzer