1. Swine Disease Transmission and Prevention;Amass,2006
2. Minimal Mycoplasma hyopneumoniae Genetic Variability Withing Production Flows;Betlach,2018
3. Colonization state and colostral immunity to Mycoplasma hyopneumoniae of different parity sows;Calsamiglia;Vet. Rec.,2000
4. Investigating the transmission of Mycoplasma hyopneumoniae in a swine herd with enzootic pneumonia;Clark;Vet. Med.,1991
5. Cline, K., Hurt, C., Foster, K., Hale, J. ,1992, All-in/all-out production. Chapter nine: Positioning your pork operation for the 21st century. pp.119–126.