Code Grey: Mapping Healthcare Service Deserts in Hamilton, Ontario and the Impact on Senior Populations. - Kristin M. Dosen; Alexis A. Karasiuk; Alexandra C. Marcaccio; Samantha Miljak; Mythili H. Nair; Victoria J. Radauskas (Cartogr. Int. J. Geogr. Inf. Geovisualization, 2017)