AWS CORD19-Search: A Scientific Literature Search Engine for COVID-19. - Parminder Bhatia; Kristjan Arumae; Nima Pourdamghani; Suyog Deshpande; Ben Snively; Mona Mona; Colby Wise; George Price; Shyam Ramaswamy; Taha A. Kass-Hout (CoRR, 2020)