The UCL–Lancet Commission on Migration and Health: the health of a world on the move. Issue 10164 (15th December 2018) - Abubakar, Ibrahim; Aldridge, Robert W; Devakumar, Delan; Orcutt, Miriam; Burns, Rachel; Barreto, Mauricio L; Dhavan, Poonam; Fouad, Fouad M; Groce, Nora; Guo, Yan; Hargreaves, Sally; Knipper, Michael; et al.