Left panel: measured nuclear modification factor of single electrons from heavy-flavor hadron decays , as well as its parameterization and the estimated nuclear modification factor caused by pure cold-nuclear matter effects with EPS09 nPDFs\,, in the 10\% most central \PbPb collisions at \fivenn. Right panel: resulting nuclear modification factor of \ee pairs from correlated open heavy-flavor hadron decays computed with a toy MC (see text) for two different \ptee.