1) Kato N, Ou CY, Kato H, Bartley SL, Luo CC, Killgore GE, et al.: Detection of toxigenic Clostridium difficile in stool specimens by the polymerase chain reaction. J Infect Dis 1993; 167: 455-8.
2) Kato H, Kato N, Watanabe K, Iwai N, Nakamura H, Yamamoto T, et al.: Identification of toxin Anegative, toxin B-positive Clostridium difficile by PCR. J Clin Microbiol 1998; 36: 2178-82.
3) Kato H, Kato N, Watanabe K, Yamamoto T, Suzuki K, Ishigo S, et al.: Analysis of Clostridium difficile isolates from nosocomial outbreaks at three hospitals in diverse areas of Japan. J Clin Microbiol 2001; 39: 1391-5.
4) Stubbs SL, Brazier JS, O'Neill GL, Duerden BI: PCR targeted to the 16S-23S rRNA gene intergenic spacer region of Clostridium difficile and construction of a library of 116 different PCR ribotypes. J Clin Microbiol 1999; 37: 461-3.
5) Jacobs A, Barnard K, Fishel R, Gradon JD: Extracolonic manifestations of Clostridium difficile infections: Presentation of 2 cases and review of the literature. Medicine 2001; 80: 88-101.