Testing regular expression searches and machine learning models to determine housing instability and low income status from primary care electronic medical record data in Toronto, Ontario. - Garies, Stephanie; Meaney, Christopher; Weyman, Karen; Bloch, Gary; Gronsbell, Jessica; Vahidi-Williams, Nassim; Wang, Ri; Crampton, Noah; Tu, Karen; Pinto, Andrew D. (BMC Public Health, 2025)