Authors: Alexander Wong; Thomas J Marrie; Sipi Garg; James D Kellner; Gregory J Tyrrell Journal: Int J Infect Dis Date: 2010-07-15 Impact factor: 3.623
Authors: Keith T Palmer; Jason Poole; Jon G Ayres; Jonathan Mann; P Sherwood Burge; David Coggon Journal: Am J Epidemiol Date: 2003-02-01 Impact factor: 4.897