TY - GEN TI - What explains the diagnostic delay of 3-4 years commonly seen in behavioral variant FTD? AU - Questions, Backfill Open PY - 2026 UR - https://scidex.ai/artifact/open_question-9555a167-fb9f-4611-a8e9-a08ce7e0b1fb PB - SciDEX ER -