Belaid L. auteur aut IRD Benoit M. auteur aut IRD Kaur N. auteur aut IRD Lili A. auteur aut IRD Ridde Valéry auteur aut IRD text journalArticle eng text/pdf reformatted digital access The purpose of this study is to describe the underlying theory and the challenges involved in implementing an intervention to access health care services for migrants with precarious status (MPS) in Montreal. The description of the underlying theory of the intervention was based on a documentary analysis and a workshop with clinicians (n = 9). The challenges were identified through concept mapping (n = 28) and in-depth interviews (n = 13). The results of the study indicated that the aims of the intervention were to provide access to health care to MPS primarily to avoid any further health status deterioration. The most significant challenges identified were sustainable funding resources and improved access to care and protection for MPS. The interviews indicated that MPS are difficult to reach out; public health care system rules are unclear; resource constraints make it difficult to provide adequate and continuing care; and advocacy activities are difficult to organize. specialized Canada migrants with precarious status intervention access to health care nongovernmental organization CANADA 108 056 10 2 art. 2158244020917957 [13 ] 2020 2158-2440 https://www.documentation.ird.fr/hor/fdi:010078139 10.1177/2158244020917957 2158-2440 [F B010078139] https://www.documentation.ird.fr/hor/fdi:010078139 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers20-06/010078139.pdf IRD - Base Horizon / Pleins textes 2020-07-02 2025-02-24 fdi:010078139 fre