Multilevel Network Meta-regression for Population-Adjusted Treatment Comparisons
David M. Phillippo, Sofia Dias, A. E. Ades, Mark Belger, Alan Brnabic, Alexander Schacht, Zbigniew Kadziola, Nicky J. Welton
Journal Of The Royal Statistical Society, Series A, vol. 183, 2020, p. 1189-1210.

Sensitivity of Treatment Recommendations to Bias in Network Meta-analysis
David M. Phillippo, Sofia Dias, A. E. Ades, Vanessa Didelez, Nicky J. Welton
Journal Of The Royal Statistical Society, Series A, vol. 181, 2018, p. 843-867.