Efficacy of an Enterotoxigenic <i>Escherichia coli</i> (ETEC) Vaccine on the Incidence and Severity of Traveler’s Diarrhea (TD): Evaluation of Alternative Endpoints and a TD Severi... oleh Nicole Maier, Shannon L. Grahek, Jane Halpern, Suzanne Restrepo, Felipe Troncoso, Janet Shimko, Olga Torres, Jaime Belkind-Gerson, David A. Sack, Ann-Mari Svennerholm, Björn Gustafsson, Björn Sjöstrand, Nils Carlin, A. Louis Bourgeois, Chad K. Porter