Quasar accretion disk size-BH mass relation compared to that from Cornachione & Morgan (2020). Left: sample of lensed quasars rescaling our r_s values to 2500 Å. A single power-law line is fitted to both samples. Right: same as the left panel but including only those sources common to both samples. The lines connect estimates for the same object. In some cases, the Cornachione & Morgan (2020) target is linked to two M_BH estimates based on different emission lines (e.g., Hα and Hβ for SDSS1138+0314).