Canal E, Pollett S, Heitzinger K, Gregory M, Kasper M, Halsey E, Meza Y, Campos K, Perez J, Meza R, Bernal M, Guillen A, Kochel TJ, Espinosa B, Hall ER, Maves RC. Detection of human leptospirosis as a cause of acute fever by capture ELISA using a Leptospira interrogans serovar Copenhageni (M20) derived antigen. BMC Infect Dis. 2013 Sep 20; 13:438.