Guidelines, Frameworks, and Trainings on Lived Experience and Caregiver Engagement in Research: Common Threads With Specific Considerations for Specific Subpopulations. - Hawke LD; Burgé Luviano H; Payne K; Phi T; Monroe H; Putterman C; Hiebert M; Conway S; Hollingdrake E; Narajos A; Chiuccariello L (Health expectations : an international journal of public participation in health care and health policy, 2026)