RT Journal Article SR Electronic T1 Strains and toxins of Clostridium JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 312 OP 313 DO 10.1503/cmaj.1041642 VO 172 IS 3 A1 Vinh, Donald C. YR 2005 UL http://www.cmaj.ca/content/172/3/312.3.abstract