Authors: J S Koopman; I M Longini; J A Jacquez; C P Simon; D G Ostrow; W R Martin; D M Woodcock Journal: Am J Epidemiol Date: 1991-06-15 Impact factor: 4.897
Authors: Craig Stephen; Harvey Artsob; William R Bowie; Michael Drebot; Erin Fraser; Ted Leighton; Muhammad Morshed; Corinne Ong; David Patrick Journal: Can J Infect Dis Med Microbiol Date: 2004-11 Impact factor: 2.471