@article {1912.00994, archivePrefix = {arXiv}, eprint = {1912.00994}, primaryClass = {astro-ph.SR}, author = {Jose H. Groh and Eoin Farrell and Georges Meynet and Nathan Smith and Laura Murphy and Andrew Allan}, title = {Massive black holes regulated by luminous blue variable mass loss and magnetic fields - implications for the progenitor of LB-1}, year = {2019}, url = {http://arxiv.org/abs/1912.00994} }