The many-body EDA in Eq. ( ) has been discussed in prior work and was used in a recent benchmark study of small-molecule trimers. There, nonadditive dispersion and induction effects, computed using XSAPT + MBD, were compared to those obtained with other methods including CCSD(T) and also SAPT(DFT) augmented with three-body corrections taken from wavefunction theory. Note that dispersion contains some nonadditivity within the density-based MBD model, as three-body dispersion energies for plotted in Fig. . These nonadditive dispersion effects are quite small, as suggested in Section 1.2.3, but are better described by XSAPT + MBD than by SAPT(DFT), based on comparison to CCSD(T) benchmarks.