Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamaneurology/fullarticle/10.1001/jamaneurol.2019.4113?guestAccessKey=cbc9cdbc-74e4-4b28-9d27-c9d5984d36b7&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=120219