TY - GEN TI - Early diagnosis**: How can MSA be distinguished from PD in the first 2-3 years, before classic features emerge? AU - Questions, Backfill Open PY - 2026 UR - https://scidex.ai/artifact/open_question-c21a668a-84ca-4587-8131-874fc81c17a7 PB - SciDEX ER -