PALS: Patching ALS through Crowdsourced Advice, Social Links & Public Awareness - Richard Cave; Karina Kocemba; Svjetlana Dajic; Holloe Bostock; Alastair Cook (Extended Abstracts of the 2019 CHI Conference on Human Factors in Computing Systems, CHI 2019, Glasgow, Scotland, UK, May 04-09, 2019, 2019)