First Nations emergency care in Alberta: descriptive results of a retrospective cohort study. - McLane, Patrick; Barnabe, Cheryl; Holroyd, Brian R.; Colquhoun, Amy; Bill, Lea; Fitzpatrick, Kayla M.; Rittenbach, Katherine; Healy, Chyloe; Healy, Bonnie; Rosychuk, Rhonda J. (BMC Health Services Research, 2021)