WORLD Symposium Abstracts and Posters World Symposium 2026 World Symposium 2025 Patient-Led Initiatives Caregiver Preferences Study Voice of the Patient Report Qualitative Studies Burden of caregiving of individuals with GM1 and GM2 gangliosidoses in the United States: a qualitative study Motor function limitations and impacts among patients with GM1 AND GM2 gangliosidoses in the united states: A qualitative study