RT Journal Article SR Electronic T1 EPISODES OF ENVIRONMENTAL POISONING WORLDWIDE JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 855 OP 860 DO 10.1136/oem.59.12.855 VO 59 IS 12 A1 N J Langford A1 R E Ferner YR 2002 UL http://oem.bmj.com/content/59/12/855.abstract AB