The Cedar Project: Historical, structural and interpersonal determinants of involvement in survival sex work over time among Indigenous women who have used drugs in two Canadian cities. - Sharma, Richa; Pooyak, Sherri; Jongbloed, Kate; Zamar, David; Pearce, Margo E.; Mazzuca, April; Schechter, Martin T.; Spittal, Patricia M.; Cedar Project Partnership (International Journal of Drug Policy, 2021)