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The mean glandular dose (in milliGray per source photon) declined slightly with projection angle θ (in degrees). This trend qualitatively agrees with results from Sechopoulos et al. (Ref. 11) for a phantom with similar chest-to-nipple distance (e.g., Figs. 8(c) and 9(c) of Ref. 44). Error bars are ±2σ based on a set of 500 phantoms.
