Baseline and post-treatment biomarkers of resistance to anti-PD-1 therapy in acral and mucosal melanoma: an observational study =============================================================================================================================== * Irene M. Shui * Xiao Qiao Liu * Qing Zhao * Seung Tae Kim * Yuan Sun * Jennifer H. Yearley * Tasmiah Choudhury * Andrea L. Webber * Clemens Krepler * Razvan Cristescu * Jeeyun Lee