Caregivers’ burden of care during emergency department care transitions among older adults: a mixed methods cohort study oleh Nathalie Germain, Estephanie Jémus-Gonzalez, Vanessa Couture, Émilie Côté, Michèle Morin, Annie Toulouse-Fournier, Laetitia Bert, Raphaëlle Giguère, Samir Sinha, Nadia Sourial, Lucas B. Chartier, Holly O. Witteman, France Légaré, Rawane Samb, Stéphane Turcotte, Sam Chandavong, Lyna Abrougui, Joanie Robitaille, Patrick M. Archambault, on behalf of the Network of Canadian Emergency Researchers