1. Leptospira;Alexander,1985
2. Clostridium;Allen,1985
3. Gram-positive, nonsporeforming anaerobic bacilli;Allen,1985
4. Pseudomonas aeruginosa mastitis due to contamination of an antibiotic preparation used in dry-cow therapy;Anderson;Aust. Vet. J.,1979
5. Ecological studies on coagulase-negative staphylococci in and around bovine udder;Baba;Bull. Osaka Pref., Ser. B,1980