Overinterpretation and misreporting of prognostic factor studies in oncology: a systematic review

Emmanuelle Kempf, Jennifer A. de Beyer, Jonathan Cook, Jane Holmes, Seid Mohammed, Tri Long Nguyên, Iveta Simera, Marialena Trivella, Douglas G. Altman, Sally Hopewell, Karel G.M. Moons, Raphael Porcher, Johannes B. Reitsma, Willi Sauerbrei, Gary S. Collins^*