Recovered CMB lensing mass M_CMBlens (divided by the SZ mass M_sz) as a function of the SZ mass for the Planck only analysis. Black dots are individual measurements. Error bars are shown in blue but we display only one out of ten for clarity. The dotted (resp. dashed) red line is the zero (resp. unity) level. The green stripe is the weighted mean 〈M_CMBlensing/M_sz〉 = 1.03 ± 0.27.