MDM2 promoter SNP344T>A (rs1196333) status does not affect cancer risk. oleh Stian Knappskog, Liv B Gansmo, Pål Romundstad, Merete Bjørnslett, Jone Trovik, Jan Sommerfelt-Pettersen, Erik Løkkevik, Norwegian Breast Cancer Group trial NBCG VI, Rob A E M Tollenaar, Caroline Seynaeve, Peter Devilee, Helga B Salvesen, Anne Dørum, Kristian Hveem, Lars Vatten, Per E Lønning