A Comparative Time-to-Event Analysis Across Health Systems. - Mohamed F. Ghalwash; Prithwish Chakraborty; Akira Koseki; Hiroki Yanagisawa; Toshiya Iwamori; Ray Tokumasu; Masaki Makino; Ryosuke Yanagiya; Atsushi Suzuki; Michiharu Kudo; Daby Sow (AMIA, 2021)