1. Leptospirosis worldwide, 1999;Wkly Epidemiol Rec,1999
2. Leptospira and leptospirosis;Faine,1999
3. Note on an organism found in yellow-fever tissue;Stimson;Publ Health Rep,1907
4. Leptospirosis;Everard,1996
5. Leptospirosis;Levett;Clin Microbiol Rev,2001