Translational epidemiology: The powerful tool for precision cancer medicine. 
Although this is an exciting time for translational medicine, systematic approaches and strategies to conduct translational research are sparse.  We highlight in this editorial the opportunities to collaborate across disciplines and to forge new interdisciplinary collaborative ventures from the perspective of epidemiology.  We specifically outline some feasible research areas, wherein Translational Epidemiology may readily speed up the translation of research for Precision Medicine.