TY - JOUR AU - Stefansdottir G. AU - Knol M. AU - De Bruin M. AU - Woodward Mark AU - Zoungas Sophia AU - Leufkens H. AU - Grobbe D. AU - Chalmers J. AU - Patel Anushka BT - Current Drug Safety C2 - PMID 24215314 ET - 8 November 2013 [Epub ahead of print] LA - eng PY - 2013 T2 - Current Drug Safety TI - The post hoc use of randomized controlled trials to explore drug associated cancer outcomes: methodological challenges ER -